SPEC Toolbox Product Integrations

The Fastest Way To Design Würth Products

About Würth

Würth is leading in the development, production, and sale of fastening and assembly materials, with a long-standing reputation for quality, innovation, and technical excellence. Founded in 1945 and headquartered in Germany, the Würth Group operates in 80 countries, offering a comprehensive range of products and services across the construction, automotive, and industrial sectors. In the timber construction space, Würth has established itself as a key partner through its advanced screw technologies and full-service engineering support for mass timber applications.

Würth’s ASSY® series of structural wood screws is engineered for high-performance timber construction, including solid wood, CLT, GLT, and LVL applications. These screws feature a unique asymmetric thread design for optimal withdrawal resistance, reduced splitting, and fast installation.

Their portfolio also includes all types and lengths of screws, enabling high-capacity connections in multi-row configurations, often used in hybrid structures and high-load-bearing applications. Würth also offers corrosion-resistant variants in stainless steel (A2/A4), making them suitable for both interior and exterior use.

With a strong focus on quality, innovation, and technical support, Würth continues to be a trusted partner in the advancement of mass timber construction, delivering fastening solutions that meet the evolving needs of modern timber engineering.

Würth Platform Updates

Recent Product Updates

The Fastest Growing Platform for Timber Specification

Release 2.1.10 New Composite Systems: Timber-Concrete Composites & Ribbed Deck Calculators.

Release 2.1.10 New Composite Systems: Timber-Concrete Composites & Ribbed Deck Calculators.

Release 2.1.1 – CLT to Steel Beam Connection Details, Dowel/Bolt Updates, Screw Filtering & More!

Release 2.1.1 – CLT to Steel Beam Connection Details, Dowel/Bolt Updates, Screw Filtering & More!

Release 2.1.2- USA and Canada Beta Version

Release 2.1.2- USA and Canada Beta Version

Release 2.1.3 – Focus on Perpendicular to Grain Compression

Release 2.1.3 – Focus on Perpendicular to Grain Compression

Release 2.1.4 – Fire Design!

Release 2.1.4 – Fire Design!

Release 2.1.5 – New Bracket Calculator Category

Release 2.1.5 – New Bracket Calculator Category

Release 2.1.6 – Major Updates & New National Annexes

Release 2.1.6 – Major Updates & New National Annexes

Release 2.1.7 – Screw Connections

Release 2.1.7 – Screw Connections

Release 2.1.8 – Analysis & One Page Summaries!

Release 2.1.8 – Analysis & One Page Summaries!

SPEC Toolbox Release!

SPEC Toolbox Release!

Products Integrated

Explore the Würth Integrated System with CLT Toolbox, a game-changing solution for modern construction that boosts efficiency and precision. Its intuitive interface allows architects and builders to seamlessly integrate Würth products for enhanced performance and sustainability.

ScrewsScrews
Screw Family Thread Type Head Type Diameter Length Service Class Specification
ASSY 4 A2 CS sst A2 FT countersunk head RW Fully Threaded Countersunk Head 5.0, 6.0 mm 30-80 mm SC1 / SC2 Hardware connection, hardwood or hard materials (MDF); Steel screws in combination with a full thread for hardware connection; Austenitic, non-magnetic class A2 stainless steel; Corrosion resistance class KWK 2; Maximum thread length for increased pull-out resistance of the screw
ASSY 4 A2 CS sst A2 PT countersunk head RW Partially Threaded Countersunk Head 5.0, 6.0 mm 40-200 mm SC1 / SC2 Hardware connection, hardwood or hard materials (MDF); Steel screws in combination with a full thread for hardware connection; Austenitic, non-magnetic class A2 stainless steel; Corrosion resistance class KWK 2; For connecting two wooden components
ASSY 4 A2 CSMP sst A2 PT cs mill. pckt RW Partially Threaded Countersunk Head 8.0 mm 80-300 mm SC1 / SC2 Countersunk head with milling pockets; Clean countersinking of the head in engineered wood
and softwood thanks to high milling performance and chip collection in the milling pockets; Austenitic, non-magnetic class A2 stainless steel; Corrosion resistance class KWK 2; For connecting two wooden components
ASSY 4 A2 WH stainless steel A2 PT washer head RW Partially Threaded Washer Head 6.0, 8.0 mm 60-400 mm SC1 / SC2 Very high head pull-through resistance and compression values thanks to very large head diameter; Well-designed screw connection with screw head lying against the wood; Austenitic, non-magnetic class A2 stainless steel; Corrosion resistance class KWK 2; For connecting two wooden components
ASSY 4 COMBI steel zn PT combi head RW Partially Threaded Hex Head 6.0, 8.0, 10.0, 12.0 mm 40-480 mm SC1 / SC2 Flat, large contact surface; Shank reinforcement for precise fit and resistance to
shear loads on metal-wood joints; High load transfer when used in wood-wood joints in combination with washers; for connecting two wooden components
ASSY 4 COMBI steel zn for transport anchor RW Fully Threaded Hex Head 10.0, 12.0 mm 90-180 mm SC1 / SC2 Flat, large contact surface; Shank reinforcement for precise fit and resistance to
shear loads on metal-wood joints; High load transfer when used in wood-wood joints in combination with washers; Maximum thread length for increased pull-out resistance of the screw
ASSY 4 CSMP ZiNi steel zn-nickel PT cs mill poc RW Partially Threaded Countersunk Head 5.0, 6.0, 8.0 mm 30-400 mm SC1 / SC2 / SC3 Countersunk head with milling pockets; Clean countersinking of the head in engineered wood
and softwood thanks to high milling performance and chip collection in the milling pockets; For connecting two wooden components
ASSY 4 CSMP steel zinc ptd. FT cs mill. pocket RW Fully Threaded Countersunk Head 5.0, 6.0 mm 20-80 mm SC1 / SC2 Countersunk head with milling pockets; Clean countersinking of the head in engineered wood
and softwood thanks to high milling performance and chip collection in the milling pockets; Maximum thread length for increased pull-out resistance of the screw
ASSY 4 CSMP steel zinc ptd. PT cs mill. pocket RW Partially Threaded Countersunk Head 5.0, 6.0, 7.0, 8.0, 10.0 mm 40-400 mm SC1 / SC2 Countersunk head with milling pockets; Clean countersinking of the head in engineered wood
and softwood thanks to high milling performance and chip collection in the milling pockets; For connecting two wooden components
ASSY 4 HCR 1.4529 CS stainless steel PT cs head RW Partially Threaded Countersunk Head 5.0, 6.0 mm 60-140 mm SC1 / SC2 / SC3 Highly corrosion resistant, austenitic, non-magnetic class HCR (highly corrosion resistant) 1.4529 stainless steel; Suitable for extremely chloride-contaminated areas with simultaneous exposure to SO2 and chlorine gas and high temperatures; Corrosion resistance class KWK 5; Hardware connection, hardwood or hard materials (MDF); Steel screws in combination with a full thread for hardware connection; For connecting two wooden components
ASSY 4 HCR 1.4539 CS stainless steel PT cs head RW Partially Threaded Countersunk Head 5.0, 6.0 mm 60-140 mm SC1 / SC2 / SC3 Highly corrosion resistant, austenitic, non-magnetic class HCR (highly corrosion resistant) 1.4539 stainless steel; Suitable for highly chloride or SO2-contaminated areas with simultaneous exposure to splash water or fog; Corrosion resistance class KWK 4 Hardware connection, hardwood or hard materials (MDF); Steel screws in combination with a full thread for hardware connection; For connecting two wooden components
ASSY 4 Isotop steel zinc plated PT cheese head RW Partially Threaded Cylinder Head 8.0 mm 210-480 mm SC1 / SC2 Small head that can be countersunk in wood: Reduced splitting when countersinking the head; For connecting two wooden components
ASSY 4 JH joist hanger steel zp FT pan head RW Fully Threaded Joist Hanger Head 5.0 mm 25-70 mm SC1 / SC2 Flat, large contact surface; Shaft reinforcement for high resistance to shear loads; For load-bearing sheet metal parts or steel-wood joints; Maximum thread length for increased pull-out resistance of the screw
ASSY 4 PII CSMP steel zinc pltd underhead thr. RW Fully Threaded Countersunk Head 8.0 mm 70-370 mm SC1 / SC2 Countersunk head with milling pockets; Clean countersinking of the head in engineered wood
and softwood thanks to high milling performance and chip collection in the milling pockets; Maximum thread length for increased pull-out resistance of the screw
ASSY 4 TH stl zn-nickel black FT large truss hd RW Fully Threaded Large Truss Head 5.0, 6.0 mm 30-50 mm SC1 / SC2 / SC3 exclude from database – no need for this dimensions
ASSY 4 WH II steel zinc ptd. PT washer head II RW Partially Threaded Washer Countersunk Head 8.0 mm 80-400 mm SC1 / SC2 High head pull-through resistance and compression values thanks to very large head diameter; Well-designed screw connection with screw head lying
against the wood or countersunk in the wood; Compression value can be increased by combination with washers; For connecting two wooden components
ASSY 4 WH steel zinc plated FT washer head RW Fully Threaded Washer Head 6.0, 8.0 mm 30-50 mm SC1 / SC2 Very high head pull-through resistance and compression values thanks to very large head diameter; Well-designed screw connection with screw head lying
against the wood; Maximum thread length for increased pull-out resistance of the screw
ASSY 4 WH steel zinc plated PT washer head RW Partially Threaded Washer Head 5.0, 6.0, 8.0, 10.0, 12.0 mm 30-560 mm SC1 / SC2 Very high head pull-through resistance and compression values thanks to very large head diameter; Well-designed screw connection with screw head lying
against the wood; For connecting two wooden components
ASSY 4 WH steel zinc plated PT washer head RW Partially Threaded Hex Head 12.0 mm 80-120 mm SC1 / SC2 Ideal for high power transmission; Integrated washer for metal connections; Tighten with suitable socket; For connecting two wooden components
ASSYplus VG 4 CH steel zn FT cs mill. pocket RW Fully Threaded Countersunk Head 12.0 mm 120-600 mm SC1 / SC2 Hardware connection, hardwood or hard materials (MDF); Steel screws in combination with a full thread for hardware connection; Maximum thread length for increased pull-out resistance of the screw
ASSY 4 WW CSMR steel zp PT cs mill. hd RW Partially Threaded Countersunk Head 5.0, 6.0 mm 40-160 mm SC1 / SC2 Easy sinking of the head in hardwood and softwood including areas around knots, as well as hard engineered wood panels thanks to very high milling performance of the milling ribs integrated in the countersunk head; For connecting two wooden components
ASSYplus 4 A2 CH terrace A2 PT cylinder head RW Partially Threaded Cylinder Head with Undercut Thread 5.5 mm 50-80 mm SC1 / SC2 Small head that can be countersunk in wood: Reduced splitting when countersinking the head; Austenitic, non-magnetic class A2 stainless steel; Corrosion resistance class KWK 2; For connecting two wooden components
ASSYplus 4 A2 CSMR sst A2 PT cs mill. head RW Partially Threaded Countersunk Head 5.5, 6.5 mm 50-200 mm SC1 / SC2 CEasy sinking of the head in hardwood and softwood including areas around knots, as well as hard engineered wood panels thanks to very high milling performance of the milling ribs integrated in the countersunk head; Austenitic, non-magnetic class A2 stainless steel; Corrosion resistance class KWK 2; For connecting two wooden components
ASSYplus 4 A2 SRCS terrace A2 PT sm raised cs head RW Partially Threaded Countersunk Head 5.5 mm 45-100 mm SC1 / SC2 For combination with rubber-coated metal washers; Lens-shaped rounded head for visually appealing
connections; Austenitic, non-magnetic class A2 stainless steel; Corrosion resistance class KWK 2; For connecting two wooden components
ASSYplus 4 A2 TRH SOLAR sst underhead thr. gate RW Fully Threaded Large Truss Head 8.0 mm 190-470 mm SC1 / SC2 Flat half-round head for well-designed metal connection; Shank reinforcement for precise fit and resistance to shear loads; Austenitic, non-magnetic class A2 stainless steel; Corrosion resistance class KWK 2; Maximum thread length for increased pull-out resistance of the screw
ASSYplus 4 CSMP steel zp PT cs milling pocket RW Partially Threaded Countersunk Head 5.0, 6.0, 8.0 mm 50-480 mm SC1 / SC2 Countersunk head with milling pockets; Clean countersinking of the head in engineered wood
and softwood thanks to high milling performance and chip collection in the milling pockets; For connecting two wooden components
ASSYplus VG 4 CH steel zn FT countersunk head RW Fully Threaded Countersunk Head 10.0 mm 120-800 mm SC1 / SC2 Hardware connection, hardwood or hard materials (MDF); Steel screws in combination with a full thread for hardware connection; Maximum thread length for increased pull-out resistance of the screw
ASSYplus VG 4 CH steel zn FT cs mill. pocket RW Fully Threaded Countersunk Head 6.0, 8.0, 12.0 mm 80-580 mm SC1 / SC2 Hardware connection, hardwood or hard materials (MDF); Steel screws in combination with a full thread for hardware connection; Maximum thread length for increased pull-out resistance of the screw
ASSYplus VG 4 CH steel zn FT cs mill. pocket RW Fully Threaded Cylinder Head 6.0, 8.0, 10.0 mm 80-800 mm SC1 / SC2 Small head that can be countersunk in wood; Reduced splitting when countersinking the head; Maximum thread length for increased pull-out resistance of the screw
ASSYplus VG 4 CH steel zn FT cylinder head RW Fully Threaded Cylinder Head 6.0 mm 100-260 mm SC1 / SC2 Small head that can be countersunk in wood; Reduced splitting when countersinking the head; Maximum thread length for increased pull-out resistance of the screw
ASSYplus VG 4 COMBI steel zinc plated FT hex hd RW Fully Threaded Hex Head 6.0, 8.0, 10.0, 12.0 mm 80-160 mm SC1 / SC2 Flat, large contact surface; Shank reinforcement for precise fit and resistance to
shear loads on metal-wood joints; High load transfer when used in wood-wood joints in combination with washers; Maximum thread length for increased pull-out resistance of the screw
ASSYplus VG steel zinc plated full thread outer TX Fully Threaded External Torx 14.0 mm 800-1500 mm SC1 / SC2 Flat, large contact surface; Shank reinforcement for precise fit and resistance to
shear loads on metal-wood joints; High load transfer when used in wood-wood joints in combination with washers; Maximum thread length for increased pull-out resistance of the screw
ScrewsScrews
Screw Family Thread Type Head Type Diameter Length Service Class Specification
ASSY 4 A2 CS sst A2 FT countersunk head RW Fully Threaded Countersunk Head 5.0, 6.0 mm 30-80 mm SC1 / SC2 Hardware connection, hardwood or hard materials (MDF); Steel screws in combination with a full thread for hardware connection; Austenitic, non-magnetic class A2 stainless steel; Corrosion resistance class KWK 2; Maximum thread length for increased pull-out resistance of the screw
ASSY 4 A2 CS sst A2 PT countersunk head RW Partially Threaded Countersunk Head 5.0, 6.0 mm 40-200 mm SC1 / SC2 Hardware connection, hardwood or hard materials (MDF); Steel screws in combination with a full thread for hardware connection; Austenitic, non-magnetic class A2 stainless steel; Corrosion resistance class KWK 2; For connecting two wooden components
ASSY 4 A2 CSMP sst A2 PT cs mill. pckt RW Partially Threaded Countersunk Head 8.0 mm 80-300 mm SC1 / SC2 Countersunk head with milling pockets; Clean countersinking of the head in engineered wood
and softwood thanks to high milling performance and chip collection in the milling pockets; Austenitic, non-magnetic class A2 stainless steel; Corrosion resistance class KWK 2; For connecting two wooden components
ASSY 4 A2 WH stainless steel A2 PT washer head RW Partially Threaded Washer Head 6.0, 8.0 mm 60-400 mm SC1 / SC2 Very high head pull-through resistance and compression values thanks to very large head diameter; Well-designed screw connection with screw head lying against the wood; Austenitic, non-magnetic class A2 stainless steel; Corrosion resistance class KWK 2; For connecting two wooden components
ASSY 4 COMBI steel zn PT combi head RW Partially Threaded Hex Head 6.0, 8.0, 10.0, 12.0 mm 40-480 mm SC1 / SC2 Flat, large contact surface; Shank reinforcement for precise fit and resistance to
shear loads on metal-wood joints; High load transfer when used in wood-wood joints in combination with washers; for connecting two wooden components
ASSY 4 COMBI steel zn for transport anchor RW Fully Threaded Hex Head 10.0, 12.0 mm 90-180 mm SC1 / SC2 Flat, large contact surface; Shank reinforcement for precise fit and resistance to
shear loads on metal-wood joints; High load transfer when used in wood-wood joints in combination with washers; Maximum thread length for increased pull-out resistance of the screw
ASSY 4 CSMP ZiNi steel zn-nickel PT cs mill poc RW Partially Threaded Countersunk Head 5.0, 6.0, 8.0 mm 30-400 mm SC1 / SC2 / SC3 Countersunk head with milling pockets; Clean countersinking of the head in engineered wood
and softwood thanks to high milling performance and chip collection in the milling pockets; For connecting two wooden components
ASSY 4 CSMP steel zinc ptd. FT cs mill. pocket RW Fully Threaded Countersunk Head 5.0, 6.0 mm 20-80 mm SC1 / SC2 Countersunk head with milling pockets; Clean countersinking of the head in engineered wood
and softwood thanks to high milling performance and chip collection in the milling pockets; Maximum thread length for increased pull-out resistance of the screw
ASSY 4 CSMP steel zinc ptd. PT cs mill. pocket RW Partially Threaded Countersunk Head 5.0, 6.0, 7.0, 8.0, 10.0 mm 40-400 mm SC1 / SC2 Countersunk head with milling pockets; Clean countersinking of the head in engineered wood
and softwood thanks to high milling performance and chip collection in the milling pockets; For connecting two wooden components
ASSY 4 HCR 1.4529 CS stainless steel PT cs head RW Partially Threaded Countersunk Head 5.0, 6.0 mm 60-140 mm SC1 / SC2 / SC3 Highly corrosion resistant, austenitic, non-magnetic class HCR (highly corrosion resistant) 1.4529 stainless steel; Suitable for extremely chloride-contaminated areas with simultaneous exposure to SO2 and chlorine gas and high temperatures; Corrosion resistance class KWK 5; Hardware connection, hardwood or hard materials (MDF); Steel screws in combination with a full thread for hardware connection; For connecting two wooden components
ASSY 4 HCR 1.4539 CS stainless steel PT cs head RW Partially Threaded Countersunk Head 5.0, 6.0 mm 60-140 mm SC1 / SC2 / SC3 Highly corrosion resistant, austenitic, non-magnetic class HCR (highly corrosion resistant) 1.4539 stainless steel; Suitable for highly chloride or SO2-contaminated areas with simultaneous exposure to splash water or fog; Corrosion resistance class KWK 4 Hardware connection, hardwood or hard materials (MDF); Steel screws in combination with a full thread for hardware connection; For connecting two wooden components
ASSY 4 Isotop steel zinc plated PT cheese head RW Partially Threaded Cylinder Head 8.0 mm 210-480 mm SC1 / SC2 Small head that can be countersunk in wood: Reduced splitting when countersinking the head; For connecting two wooden components
ASSY 4 JH joist hanger steel zp FT pan head RW Fully Threaded Joist Hanger Head 5.0 mm 25-70 mm SC1 / SC2 Flat, large contact surface; Shaft reinforcement for high resistance to shear loads; For load-bearing sheet metal parts or steel-wood joints; Maximum thread length for increased pull-out resistance of the screw
ASSY 4 PII CSMP steel zinc pltd underhead thr. RW Fully Threaded Countersunk Head 8.0 mm 70-370 mm SC1 / SC2 Countersunk head with milling pockets; Clean countersinking of the head in engineered wood
and softwood thanks to high milling performance and chip collection in the milling pockets; Maximum thread length for increased pull-out resistance of the screw
ASSY 4 TH stl zn-nickel black FT large truss hd RW Fully Threaded Large Truss Head 5.0, 6.0 mm 30-50 mm SC1 / SC2 / SC3 exclude from database – no need for this dimensions
ASSY 4 WH II steel zinc ptd. PT washer head II RW Partially Threaded Washer Countersunk Head 8.0 mm 80-400 mm SC1 / SC2 High head pull-through resistance and compression values thanks to very large head diameter; Well-designed screw connection with screw head lying
against the wood or countersunk in the wood; Compression value can be increased by combination with washers; For connecting two wooden components
ASSY 4 WH steel zinc plated FT washer head RW Fully Threaded Washer Head 6.0, 8.0 mm 30-50 mm SC1 / SC2 Very high head pull-through resistance and compression values thanks to very large head diameter; Well-designed screw connection with screw head lying
against the wood; Maximum thread length for increased pull-out resistance of the screw
ASSY 4 WH steel zinc plated PT washer head RW Partially Threaded Washer Head 5.0, 6.0, 8.0, 10.0, 12.0 mm 30-560 mm SC1 / SC2 Very high head pull-through resistance and compression values thanks to very large head diameter; Well-designed screw connection with screw head lying
against the wood; For connecting two wooden components
ASSY 4 WH steel zinc plated PT washer head RW Partially Threaded Hex Head 12.0 mm 80-120 mm SC1 / SC2 Ideal for high power transmission; Integrated washer for metal connections; Tighten with suitable socket; For connecting two wooden components
ASSYplus VG 4 CH steel zn FT cs mill. pocket RW Fully Threaded Countersunk Head 12.0 mm 120-600 mm SC1 / SC2 Hardware connection, hardwood or hard materials (MDF); Steel screws in combination with a full thread for hardware connection; Maximum thread length for increased pull-out resistance of the screw
ASSY 4 WW CSMR steel zp PT cs mill. hd RW Partially Threaded Countersunk Head 5.0, 6.0 mm 40-160 mm SC1 / SC2 Easy sinking of the head in hardwood and softwood including areas around knots, as well as hard engineered wood panels thanks to very high milling performance of the milling ribs integrated in the countersunk head; For connecting two wooden components
ASSYplus 4 A2 CH terrace A2 PT cylinder head RW Partially Threaded Cylinder Head with Undercut Thread 5.5 mm 50-80 mm SC1 / SC2 Small head that can be countersunk in wood: Reduced splitting when countersinking the head; Austenitic, non-magnetic class A2 stainless steel; Corrosion resistance class KWK 2; For connecting two wooden components
ASSYplus 4 A2 CSMR sst A2 PT cs mill. head RW Partially Threaded Countersunk Head 5.5, 6.5 mm 50-200 mm SC1 / SC2 CEasy sinking of the head in hardwood and softwood including areas around knots, as well as hard engineered wood panels thanks to very high milling performance of the milling ribs integrated in the countersunk head; Austenitic, non-magnetic class A2 stainless steel; Corrosion resistance class KWK 2; For connecting two wooden components
ASSYplus 4 A2 SRCS terrace A2 PT sm raised cs head RW Partially Threaded Countersunk Head 5.5 mm 45-100 mm SC1 / SC2 For combination with rubber-coated metal washers; Lens-shaped rounded head for visually appealing
connections; Austenitic, non-magnetic class A2 stainless steel; Corrosion resistance class KWK 2; For connecting two wooden components
ASSYplus 4 A2 TRH SOLAR sst underhead thr. gate RW Fully Threaded Large Truss Head 8.0 mm 190-470 mm SC1 / SC2 Flat half-round head for well-designed metal connection; Shank reinforcement for precise fit and resistance to shear loads; Austenitic, non-magnetic class A2 stainless steel; Corrosion resistance class KWK 2; Maximum thread length for increased pull-out resistance of the screw
ASSYplus 4 CSMP steel zp PT cs milling pocket RW Partially Threaded Countersunk Head 5.0, 6.0, 8.0 mm 50-480 mm SC1 / SC2 Countersunk head with milling pockets; Clean countersinking of the head in engineered wood
and softwood thanks to high milling performance and chip collection in the milling pockets; For connecting two wooden components
ASSYplus VG 4 CH steel zn FT countersunk head RW Fully Threaded Countersunk Head 10.0 mm 120-800 mm SC1 / SC2 Hardware connection, hardwood or hard materials (MDF); Steel screws in combination with a full thread for hardware connection; Maximum thread length for increased pull-out resistance of the screw
ASSYplus VG 4 CH steel zn FT cs mill. pocket RW Fully Threaded Countersunk Head 6.0, 8.0, 12.0 mm 80-580 mm SC1 / SC2 Hardware connection, hardwood or hard materials (MDF); Steel screws in combination with a full thread for hardware connection; Maximum thread length for increased pull-out resistance of the screw
ASSYplus VG 4 CH steel zn FT cs mill. pocket RW Fully Threaded Cylinder Head 6.0, 8.0, 10.0 mm 80-800 mm SC1 / SC2 Small head that can be countersunk in wood; Reduced splitting when countersinking the head; Maximum thread length for increased pull-out resistance of the screw
ASSYplus VG 4 CH steel zn FT cylinder head RW Fully Threaded Cylinder Head 6.0 mm 100-260 mm SC1 / SC2 Small head that can be countersunk in wood; Reduced splitting when countersinking the head; Maximum thread length for increased pull-out resistance of the screw
ASSYplus VG 4 COMBI steel zinc plated FT hex hd RW Fully Threaded Hex Head 6.0, 8.0, 10.0, 12.0 mm 80-160 mm SC1 / SC2 Flat, large contact surface; Shank reinforcement for precise fit and resistance to
shear loads on metal-wood joints; High load transfer when used in wood-wood joints in combination with washers; Maximum thread length for increased pull-out resistance of the screw
ASSYplus VG steel zinc plated full thread outer TX Fully Threaded External Torx 14.0 mm 800-1500 mm SC1 / SC2 Flat, large contact surface; Shank reinforcement for precise fit and resistance to
shear loads on metal-wood joints; High load transfer when used in wood-wood joints in combination with washers; Maximum thread length for increased pull-out resistance of the screw
ScrewsScrews
Screw Family Thread Type Head Type Diameter Length Service Class Specification
ASSY 4 A2 CS sst A2 FT countersunk head RW Fully Threaded Countersunk Head 5.0, 6.0 mm 30-80 mm SC1 / SC2 Hardware connection, hardwood or hard materials (MDF); Steel screws in combination with a full thread for hardware connection; Austenitic, non-magnetic class A2 stainless steel; Corrosion resistance class KWK 2; Maximum thread length for increased pull-out resistance of the screw
ASSY 4 A2 CS sst A2 PT countersunk head RW Partially Threaded Countersunk Head 5.0, 6.0 mm 40-200 mm SC1 / SC2 Hardware connection, hardwood or hard materials (MDF); Steel screws in combination with a full thread for hardware connection; Austenitic, non-magnetic class A2 stainless steel; Corrosion resistance class KWK 2; For connecting two wooden components
ASSY 4 A2 CSMP sst A2 PT cs mill. pckt RW Partially Threaded Countersunk Head 8.0 mm 80-300 mm SC1 / SC2 Countersunk head with milling pockets; Clean countersinking of the head in engineered wood
and softwood thanks to high milling performance and chip collection in the milling pockets; Austenitic, non-magnetic class A2 stainless steel; Corrosion resistance class KWK 2; For connecting two wooden components
ASSY 4 A2 WH stainless steel A2 PT washer head RW Partially Threaded Washer Head 6.0, 8.0 mm 60-400 mm SC1 / SC2 Very high head pull-through resistance and compression values thanks to very large head diameter; Well-designed screw connection with screw head lying against the wood; Austenitic, non-magnetic class A2 stainless steel; Corrosion resistance class KWK 2; For connecting two wooden components
ASSY 4 COMBI steel zn PT combi head RW Partially Threaded Hex Head 6.0, 8.0, 10.0, 12.0 mm 40-480 mm SC1 / SC2 Flat, large contact surface; Shank reinforcement for precise fit and resistance to
shear loads on metal-wood joints; High load transfer when used in wood-wood joints in combination with washers; for connecting two wooden components
ASSY 4 COMBI steel zn for transport anchor RW Fully Threaded Hex Head 10.0, 12.0 mm 90-180 mm SC1 / SC2 Flat, large contact surface; Shank reinforcement for precise fit and resistance to
shear loads on metal-wood joints; High load transfer when used in wood-wood joints in combination with washers; Maximum thread length for increased pull-out resistance of the screw
ASSY 4 CSMP ZiNi steel zn-nickel PT cs mill poc RW Partially Threaded Countersunk Head 5.0, 6.0, 8.0 mm 30-400 mm SC1 / SC2 / SC3 Countersunk head with milling pockets; Clean countersinking of the head in engineered wood
and softwood thanks to high milling performance and chip collection in the milling pockets; For connecting two wooden components
ASSY 4 CSMP steel zinc ptd. FT cs mill. pocket RW Fully Threaded Countersunk Head 5.0, 6.0 mm 20-80 mm SC1 / SC2 Countersunk head with milling pockets; Clean countersinking of the head in engineered wood
and softwood thanks to high milling performance and chip collection in the milling pockets; Maximum thread length for increased pull-out resistance of the screw
ASSY 4 CSMP steel zinc ptd. PT cs mill. pocket RW Partially Threaded Countersunk Head 5.0, 6.0, 7.0, 8.0, 10.0 mm 40-400 mm SC1 / SC2 Countersunk head with milling pockets; Clean countersinking of the head in engineered wood
and softwood thanks to high milling performance and chip collection in the milling pockets; For connecting two wooden components
ASSY 4 HCR 1.4529 CS stainless steel PT cs head RW Partially Threaded Countersunk Head 5.0, 6.0 mm 60-140 mm SC1 / SC2 / SC3 Highly corrosion resistant, austenitic, non-magnetic class HCR (highly corrosion resistant) 1.4529 stainless steel; Suitable for extremely chloride-contaminated areas with simultaneous exposure to SO2 and chlorine gas and high temperatures; Corrosion resistance class KWK 5; Hardware connection, hardwood or hard materials (MDF); Steel screws in combination with a full thread for hardware connection; For connecting two wooden components
ASSY 4 HCR 1.4539 CS stainless steel PT cs head RW Partially Threaded Countersunk Head 5.0, 6.0 mm 60-140 mm SC1 / SC2 / SC3 Highly corrosion resistant, austenitic, non-magnetic class HCR (highly corrosion resistant) 1.4539 stainless steel; Suitable for highly chloride or SO2-contaminated areas with simultaneous exposure to splash water or fog; Corrosion resistance class KWK 4 Hardware connection, hardwood or hard materials (MDF); Steel screws in combination with a full thread for hardware connection; For connecting two wooden components
ASSY 4 Isotop steel zinc plated PT cheese head RW Partially Threaded Cylinder Head 8.0 mm 210-480 mm SC1 / SC2 Small head that can be countersunk in wood: Reduced splitting when countersinking the head; For connecting two wooden components
ASSY 4 JH joist hanger steel zp FT pan head RW Fully Threaded Joist Hanger Head 5.0 mm 25-70 mm SC1 / SC2 Flat, large contact surface; Shaft reinforcement for high resistance to shear loads; For load-bearing sheet metal parts or steel-wood joints; Maximum thread length for increased pull-out resistance of the screw
ASSY 4 PII CSMP steel zinc pltd underhead thr. RW Fully Threaded Countersunk Head 8.0 mm 70-370 mm SC1 / SC2 Countersunk head with milling pockets; Clean countersinking of the head in engineered wood
and softwood thanks to high milling performance and chip collection in the milling pockets; Maximum thread length for increased pull-out resistance of the screw
ASSY 4 TH stl zn-nickel black FT large truss hd RW Fully Threaded Large Truss Head 5.0, 6.0 mm 30-50 mm SC1 / SC2 / SC3 exclude from database – no need for this dimensions
ASSY 4 WH II steel zinc ptd. PT washer head II RW Partially Threaded Washer Countersunk Head 8.0 mm 80-400 mm SC1 / SC2 High head pull-through resistance and compression values thanks to very large head diameter; Well-designed screw connection with screw head lying
against the wood or countersunk in the wood; Compression value can be increased by combination with washers; For connecting two wooden components
ASSY 4 WH steel zinc plated FT washer head RW Fully Threaded Washer Head 6.0, 8.0 mm 30-50 mm SC1 / SC2 Very high head pull-through resistance and compression values thanks to very large head diameter; Well-designed screw connection with screw head lying
against the wood; Maximum thread length for increased pull-out resistance of the screw
ASSY 4 WH steel zinc plated PT washer head RW Partially Threaded Washer Head 5.0, 6.0, 8.0, 10.0, 12.0 mm 30-560 mm SC1 / SC2 Very high head pull-through resistance and compression values thanks to very large head diameter; Well-designed screw connection with screw head lying
against the wood; For connecting two wooden components
ASSY 4 WH steel zinc plated PT washer head RW Partially Threaded Hex Head 12.0 mm 80-120 mm SC1 / SC2 Ideal for high power transmission; Integrated washer for metal connections; Tighten with suitable socket; For connecting two wooden components
ASSYplus VG 4 CH steel zn FT cs mill. pocket RW Fully Threaded Countersunk Head 12.0 mm 120-600 mm SC1 / SC2 Hardware connection, hardwood or hard materials (MDF); Steel screws in combination with a full thread for hardware connection; Maximum thread length for increased pull-out resistance of the screw
ASSY 4 WW CSMR steel zp PT cs mill. hd RW Partially Threaded Countersunk Head 5.0, 6.0 mm 40-160 mm SC1 / SC2 Easy sinking of the head in hardwood and softwood including areas around knots, as well as hard engineered wood panels thanks to very high milling performance of the milling ribs integrated in the countersunk head; For connecting two wooden components
ASSYplus 4 A2 CH terrace A2 PT cylinder head RW Partially Threaded Cylinder Head with Undercut Thread 5.5 mm 50-80 mm SC1 / SC2 Small head that can be countersunk in wood: Reduced splitting when countersinking the head; Austenitic, non-magnetic class A2 stainless steel; Corrosion resistance class KWK 2; For connecting two wooden components
ASSYplus 4 A2 CSMR sst A2 PT cs mill. head RW Partially Threaded Countersunk Head 5.5, 6.5 mm 50-200 mm SC1 / SC2 CEasy sinking of the head in hardwood and softwood including areas around knots, as well as hard engineered wood panels thanks to very high milling performance of the milling ribs integrated in the countersunk head; Austenitic, non-magnetic class A2 stainless steel; Corrosion resistance class KWK 2; For connecting two wooden components
ASSYplus 4 A2 SRCS terrace A2 PT sm raised cs head RW Partially Threaded Countersunk Head 5.5 mm 45-100 mm SC1 / SC2 For combination with rubber-coated metal washers; Lens-shaped rounded head for visually appealing
connections; Austenitic, non-magnetic class A2 stainless steel; Corrosion resistance class KWK 2; For connecting two wooden components
ASSYplus 4 A2 TRH SOLAR sst underhead thr. gate RW Fully Threaded Large Truss Head 8.0 mm 190-470 mm SC1 / SC2 Flat half-round head for well-designed metal connection; Shank reinforcement for precise fit and resistance to shear loads; Austenitic, non-magnetic class A2 stainless steel; Corrosion resistance class KWK 2; Maximum thread length for increased pull-out resistance of the screw
ASSYplus 4 CSMP steel zp PT cs milling pocket RW Partially Threaded Countersunk Head 5.0, 6.0, 8.0 mm 50-480 mm SC1 / SC2 Countersunk head with milling pockets; Clean countersinking of the head in engineered wood
and softwood thanks to high milling performance and chip collection in the milling pockets; For connecting two wooden components
ASSYplus VG 4 CH steel zn FT countersunk head RW Fully Threaded Countersunk Head 10.0 mm 120-800 mm SC1 / SC2 Hardware connection, hardwood or hard materials (MDF); Steel screws in combination with a full thread for hardware connection; Maximum thread length for increased pull-out resistance of the screw
ASSYplus VG 4 CH steel zn FT cs mill. pocket RW Fully Threaded Countersunk Head 6.0, 8.0, 12.0 mm 80-580 mm SC1 / SC2 Hardware connection, hardwood or hard materials (MDF); Steel screws in combination with a full thread for hardware connection; Maximum thread length for increased pull-out resistance of the screw
ASSYplus VG 4 CH steel zn FT cs mill. pocket RW Fully Threaded Cylinder Head 6.0, 8.0, 10.0 mm 80-800 mm SC1 / SC2 Small head that can be countersunk in wood; Reduced splitting when countersinking the head; Maximum thread length for increased pull-out resistance of the screw
ASSYplus VG 4 CH steel zn FT cylinder head RW Fully Threaded Cylinder Head 6.0 mm 100-260 mm SC1 / SC2 Small head that can be countersunk in wood; Reduced splitting when countersinking the head; Maximum thread length for increased pull-out resistance of the screw
ASSYplus VG 4 COMBI steel zinc plated FT hex hd RW Fully Threaded Hex Head 6.0, 8.0, 10.0, 12.0 mm 80-160 mm SC1 / SC2 Flat, large contact surface; Shank reinforcement for precise fit and resistance to
shear loads on metal-wood joints; High load transfer when used in wood-wood joints in combination with washers; Maximum thread length for increased pull-out resistance of the screw
ASSYplus VG steel zinc plated full thread outer TX Fully Threaded External Torx 14.0 mm 800-1500 mm SC1 / SC2 Flat, large contact surface; Shank reinforcement for precise fit and resistance to
shear loads on metal-wood joints; High load transfer when used in wood-wood joints in combination with washers; Maximum thread length for increased pull-out resistance of the screw
ScrewsScrews
Screw Family Thread Type Head Type Diameter Length Service Class Specification
ASSY 4 A2 CS sst A2 FT countersunk head RW Fully Threaded Countersunk Head 5.0, 6.0 mm 30-80 mm SC1 / SC2 Hardware connection, hardwood or hard materials (MDF); Steel screws in combination with a full thread for hardware connection; Austenitic, non-magnetic class A2 stainless steel; Corrosion resistance class KWK 2; Maximum thread length for increased pull-out resistance of the screw
ASSY 4 A2 CS sst A2 PT countersunk head RW Partially Threaded Countersunk Head 5.0, 6.0 mm 40-200 mm SC1 / SC2 Hardware connection, hardwood or hard materials (MDF); Steel screws in combination with a full thread for hardware connection; Austenitic, non-magnetic class A2 stainless steel; Corrosion resistance class KWK 2; For connecting two wooden components
ASSY 4 A2 CSMP sst A2 PT cs mill. pckt RW Partially Threaded Countersunk Head 8.0 mm 80-300 mm SC1 / SC2 Countersunk head with milling pockets; Clean countersinking of the head in engineered wood
and softwood thanks to high milling performance and chip collection in the milling pockets; Austenitic, non-magnetic class A2 stainless steel; Corrosion resistance class KWK 2; For connecting two wooden components
ASSY 4 A2 WH stainless steel A2 PT washer head RW Partially Threaded Washer Head 6.0, 8.0 mm 60-400 mm SC1 / SC2 Very high head pull-through resistance and compression values thanks to very large head diameter; Well-designed screw connection with screw head lying against the wood; Austenitic, non-magnetic class A2 stainless steel; Corrosion resistance class KWK 2; For connecting two wooden components
ASSY 4 COMBI steel zn PT combi head RW Partially Threaded Hex Head 6.0, 8.0, 10.0, 12.0 mm 40-480 mm SC1 / SC2 Flat, large contact surface; Shank reinforcement for precise fit and resistance to
shear loads on metal-wood joints; High load transfer when used in wood-wood joints in combination with washers; for connecting two wooden components
ASSY 4 COMBI steel zn for transport anchor RW Fully Threaded Hex Head 10.0, 12.0 mm 90-180 mm SC1 / SC2 Flat, large contact surface; Shank reinforcement for precise fit and resistance to
shear loads on metal-wood joints; High load transfer when used in wood-wood joints in combination with washers; Maximum thread length for increased pull-out resistance of the screw
ASSY 4 CSMP ZiNi steel zn-nickel PT cs mill poc RW Partially Threaded Countersunk Head 5.0, 6.0, 8.0 mm 30-400 mm SC1 / SC2 / SC3 Countersunk head with milling pockets; Clean countersinking of the head in engineered wood
and softwood thanks to high milling performance and chip collection in the milling pockets; For connecting two wooden components
ASSY 4 CSMP steel zinc ptd. FT cs mill. pocket RW Fully Threaded Countersunk Head 5.0, 6.0 mm 20-80 mm SC1 / SC2 Countersunk head with milling pockets; Clean countersinking of the head in engineered wood
and softwood thanks to high milling performance and chip collection in the milling pockets; Maximum thread length for increased pull-out resistance of the screw
ASSY 4 CSMP steel zinc ptd. PT cs mill. pocket RW Partially Threaded Countersunk Head 5.0, 6.0, 7.0, 8.0, 10.0 mm 40-400 mm SC1 / SC2 Countersunk head with milling pockets; Clean countersinking of the head in engineered wood
and softwood thanks to high milling performance and chip collection in the milling pockets; For connecting two wooden components
ASSY 4 HCR 1.4529 CS stainless steel PT cs head RW Partially Threaded Countersunk Head 5.0, 6.0 mm 60-140 mm SC1 / SC2 / SC3 Highly corrosion resistant, austenitic, non-magnetic class HCR (highly corrosion resistant) 1.4529 stainless steel; Suitable for extremely chloride-contaminated areas with simultaneous exposure to SO2 and chlorine gas and high temperatures; Corrosion resistance class KWK 5; Hardware connection, hardwood or hard materials (MDF); Steel screws in combination with a full thread for hardware connection; For connecting two wooden components
ASSY 4 HCR 1.4539 CS stainless steel PT cs head RW Partially Threaded Countersunk Head 5.0, 6.0 mm 60-140 mm SC1 / SC2 / SC3 Highly corrosion resistant, austenitic, non-magnetic class HCR (highly corrosion resistant) 1.4539 stainless steel; Suitable for highly chloride or SO2-contaminated areas with simultaneous exposure to splash water or fog; Corrosion resistance class KWK 4 Hardware connection, hardwood or hard materials (MDF); Steel screws in combination with a full thread for hardware connection; For connecting two wooden components
ASSY 4 Isotop steel zinc plated PT cheese head RW Partially Threaded Cylinder Head 8.0 mm 210-480 mm SC1 / SC2 Small head that can be countersunk in wood: Reduced splitting when countersinking the head; For connecting two wooden components
ASSY 4 JH joist hanger steel zp FT pan head RW Fully Threaded Joist Hanger Head 5.0 mm 25-70 mm SC1 / SC2 Flat, large contact surface; Shaft reinforcement for high resistance to shear loads; For load-bearing sheet metal parts or steel-wood joints; Maximum thread length for increased pull-out resistance of the screw
ASSY 4 PII CSMP steel zinc pltd underhead thr. RW Fully Threaded Countersunk Head 8.0 mm 70-370 mm SC1 / SC2 Countersunk head with milling pockets; Clean countersinking of the head in engineered wood
and softwood thanks to high milling performance and chip collection in the milling pockets; Maximum thread length for increased pull-out resistance of the screw
ASSY 4 TH stl zn-nickel black FT large truss hd RW Fully Threaded Large Truss Head 5.0, 6.0 mm 30-50 mm SC1 / SC2 / SC3 exclude from database – no need for this dimensions
ASSY 4 WH II steel zinc ptd. PT washer head II RW Partially Threaded Washer Countersunk Head 8.0 mm 80-400 mm SC1 / SC2 High head pull-through resistance and compression values thanks to very large head diameter; Well-designed screw connection with screw head lying
against the wood or countersunk in the wood; Compression value can be increased by combination with washers; For connecting two wooden components
ASSY 4 WH steel zinc plated FT washer head RW Fully Threaded Washer Head 6.0, 8.0 mm 30-50 mm SC1 / SC2 Very high head pull-through resistance and compression values thanks to very large head diameter; Well-designed screw connection with screw head lying
against the wood; Maximum thread length for increased pull-out resistance of the screw
ASSY 4 WH steel zinc plated PT washer head RW Partially Threaded Washer Head 5.0, 6.0, 8.0, 10.0, 12.0 mm 30-560 mm SC1 / SC2 Very high head pull-through resistance and compression values thanks to very large head diameter; Well-designed screw connection with screw head lying
against the wood; For connecting two wooden components
ASSY 4 WH steel zinc plated PT washer head RW Partially Threaded Hex Head 12.0 mm 80-120 mm SC1 / SC2 Ideal for high power transmission; Integrated washer for metal connections; Tighten with suitable socket; For connecting two wooden components
ASSYplus VG 4 CH steel zn FT cs mill. pocket RW Fully Threaded Countersunk Head 12.0 mm 120-600 mm SC1 / SC2 Hardware connection, hardwood or hard materials (MDF); Steel screws in combination with a full thread for hardware connection; Maximum thread length for increased pull-out resistance of the screw
ASSY 4 WW CSMR steel zp PT cs mill. hd RW Partially Threaded Countersunk Head 5.0, 6.0 mm 40-160 mm SC1 / SC2 Easy sinking of the head in hardwood and softwood including areas around knots, as well as hard engineered wood panels thanks to very high milling performance of the milling ribs integrated in the countersunk head; For connecting two wooden components
ASSYplus 4 A2 CH terrace A2 PT cylinder head RW Partially Threaded Cylinder Head with Undercut Thread 5.5 mm 50-80 mm SC1 / SC2 Small head that can be countersunk in wood: Reduced splitting when countersinking the head; Austenitic, non-magnetic class A2 stainless steel; Corrosion resistance class KWK 2; For connecting two wooden components
ASSYplus 4 A2 CSMR sst A2 PT cs mill. head RW Partially Threaded Countersunk Head 5.5, 6.5 mm 50-200 mm SC1 / SC2 CEasy sinking of the head in hardwood and softwood including areas around knots, as well as hard engineered wood panels thanks to very high milling performance of the milling ribs integrated in the countersunk head; Austenitic, non-magnetic class A2 stainless steel; Corrosion resistance class KWK 2; For connecting two wooden components
ASSYplus 4 A2 SRCS terrace A2 PT sm raised cs head RW Partially Threaded Countersunk Head 5.5 mm 45-100 mm SC1 / SC2 For combination with rubber-coated metal washers; Lens-shaped rounded head for visually appealing
connections; Austenitic, non-magnetic class A2 stainless steel; Corrosion resistance class KWK 2; For connecting two wooden components
ASSYplus 4 A2 TRH SOLAR sst underhead thr. gate RW Fully Threaded Large Truss Head 8.0 mm 190-470 mm SC1 / SC2 Flat half-round head for well-designed metal connection; Shank reinforcement for precise fit and resistance to shear loads; Austenitic, non-magnetic class A2 stainless steel; Corrosion resistance class KWK 2; Maximum thread length for increased pull-out resistance of the screw
ASSYplus 4 CSMP steel zp PT cs milling pocket RW Partially Threaded Countersunk Head 5.0, 6.0, 8.0 mm 50-480 mm SC1 / SC2 Countersunk head with milling pockets; Clean countersinking of the head in engineered wood
and softwood thanks to high milling performance and chip collection in the milling pockets; For connecting two wooden components
ASSYplus VG 4 CH steel zn FT countersunk head RW Fully Threaded Countersunk Head 10.0 mm 120-800 mm SC1 / SC2 Hardware connection, hardwood or hard materials (MDF); Steel screws in combination with a full thread for hardware connection; Maximum thread length for increased pull-out resistance of the screw
ASSYplus VG 4 CH steel zn FT cs mill. pocket RW Fully Threaded Countersunk Head 6.0, 8.0, 12.0 mm 80-580 mm SC1 / SC2 Hardware connection, hardwood or hard materials (MDF); Steel screws in combination with a full thread for hardware connection; Maximum thread length for increased pull-out resistance of the screw
ASSYplus VG 4 CH steel zn FT cs mill. pocket RW Fully Threaded Cylinder Head 6.0, 8.0, 10.0 mm 80-800 mm SC1 / SC2 Small head that can be countersunk in wood; Reduced splitting when countersinking the head; Maximum thread length for increased pull-out resistance of the screw
ASSYplus VG 4 CH steel zn FT cylinder head RW Fully Threaded Cylinder Head 6.0 mm 100-260 mm SC1 / SC2 Small head that can be countersunk in wood; Reduced splitting when countersinking the head; Maximum thread length for increased pull-out resistance of the screw
ASSYplus VG 4 COMBI steel zinc plated FT hex hd RW Fully Threaded Hex Head 6.0, 8.0, 10.0, 12.0 mm 80-160 mm SC1 / SC2 Flat, large contact surface; Shank reinforcement for precise fit and resistance to
shear loads on metal-wood joints; High load transfer when used in wood-wood joints in combination with washers; Maximum thread length for increased pull-out resistance of the screw
ASSYplus VG steel zinc plated full thread outer TX Fully Threaded External Torx 14.0 mm 800-1500 mm SC1 / SC2 Flat, large contact surface; Shank reinforcement for precise fit and resistance to
shear loads on metal-wood joints; High load transfer when used in wood-wood joints in combination with washers; Maximum thread length for increased pull-out resistance of the screw
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