SPEC Toolbox Product Integrations

The Fastest Way To Design Spax Products

About Spax

Spax, a leader in the fastening industry, offers a diverse range of screws for various applications, including universal, wood construction, decking, concrete, and interior and exterior applications. Renowned for their high-quality products, Spax ensures that every screw meets rigorous standards for durability and performance. Their wood construction screws, in particular, are highly recommended within the timber construction industry for their reliability and ease of use.

Spax is committed to sustainability, actively working to reduce greenhouse gas emissions and improve resource efficiency. Their sustainability initiatives include converting to LED lighting, heat recovery systems, and ecological cleaning processes. Spax’s comprehensive approach to environmental responsibility reflects their dedication to preserving the planet while providing top-tier products.

Spax 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 Spax 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 Spax products for enhanced performance and sustainability.

ScrewsScrews
Screw Family Thread Type Head Type Diameter Length Environment Specification
4Cut, Washer, Long threaded Long Threaded Washer Head 0.236""-0.3937"" 3 15/16""-17 23/32"" Dry, wet ICC-ES ESR-5358 listed SPAX XF series structural wood screw with HCR coating. Approved for dry service conditions per NDS. Approved for wet service conditions for 1/4 in., 5/16 in., and 3/8 in. diameters only, with wet-service factor CM = 0.59. Not approved for saltwater or salt spray exposure.
4Cut, Cylinder, Fully threaded Fully Threaded Cylinder Head 0.236"" 3 5/32""-7 7/8"" Dry, wet ICC-ES ESR-5358 listed SPAX X-Series cylinder head structural screw with HCR coating. Limited to wood-to-wood connections only. Approved for dry service conditions. Wet service permitted only for XF series screws in 1/4 in., 5/16 in., and 3/8 in. diameters, with CM = 0.59.
4Cut, Pancake, Partially threaded Partially Threaded Pancake Head 0.2756""-0.3937"" 2""-22"" Dry, wet ICC-ES ESR-5358 listed SPAX XF series pancake head structural wood screw with HCR coating. Approved for dry service conditions. Wet service conditions permitted for 1/4 in., 5/16 in., and 3/8 in. diameters only, subject to wet-service factor CM = 0.59.
4Cut, Hex, Partially threaded Partially Threaded Hex Head 0.2756""-0.3937"" 2""-24"" Dry, wet ICC-ES ESR-5358 listed SPAX XF series hex head structural wood screw with HCR coating. Approved for dry service conditions. Wet service permitted for 1/4 in., 5/16 in., and 3/8 in. diameters only. Not approved for saltwater exposure.
4Cut, Flat, Long threaded Long Threaded Flat Head 0.315""-0.3937"" 3 1/8""-17 3/4"" Dry, wet ICC-ES ESR-5358 listed SPAX X-Series flat head structural wood screw with HCR coating. Approved for dry service conditions. Wet service only when specified as XF series in diameters 1/4 in. through 3/8 in.
Cut, Flat, Fully threaded Fully Threaded Flat Head 0.315""-0.3937"" 6 1/4""-31 1/2"" Dry ICC-ES ESR-5358 listed SPAX XC series fully threaded flat head structural wood screw with HCR coating. Approved for dry service conditions only.
Cut, Cylinder, Fully threaded Fully Threaded Cylinder Head 0.315"" 6 1/4""-23 5/9"" Dry ICC-ES ESR-5358 listed SPAX XC series cylinder head structural wood screw with HCR coating. Limited to wood-to-wood connections and dry service conditions only.
Sharp, Hex, Partially threaded Partially Threaded Hex Head 0.47244"" 5""-24"" Dry, wet CC-ES ESR-5358 listed SPAX XS series 1/2 in. hex head structural wood screw with HCR coating. Approved for dry and wet service conditions in accordance with NDS, with wet-service factor CM = 0.59.
Threaded, Hex, Fully threaded Fully Threaded Hex Head 0.63"" 31 1/2""-78 3/4"" Dry ICC-ES ESR-5358 listed SPAX XR series 5/8 in. fully threaded hex head structural fastener. Approved for dry service conditions only.
ScrewsScrews
Screw Family Thread Type Head Type Diameter Length Environment Specification
4Cut, Washer, Long threaded Long Threaded Washer Head 0.236""-0.3937"" 3 15/16""-17 23/32"" Dry, wet ICC-ES ESR-5358 listed SPAX XF series structural wood screw with HCR coating. Approved for dry service conditions per NDS. Approved for wet service conditions for 1/4 in., 5/16 in., and 3/8 in. diameters only, with wet-service factor CM = 0.59. Not approved for saltwater or salt spray exposure.
4Cut, Cylinder, Fully threaded Fully Threaded Cylinder Head 0.236"" 3 5/32""-7 7/8"" Dry, wet ICC-ES ESR-5358 listed SPAX X-Series cylinder head structural screw with HCR coating. Limited to wood-to-wood connections only. Approved for dry service conditions. Wet service permitted only for XF series screws in 1/4 in., 5/16 in., and 3/8 in. diameters, with CM = 0.59.
4Cut, Pancake, Partially threaded Partially Threaded Pancake Head 0.2756""-0.3937"" 2""-22"" Dry, wet ICC-ES ESR-5358 listed SPAX XF series pancake head structural wood screw with HCR coating. Approved for dry service conditions. Wet service conditions permitted for 1/4 in., 5/16 in., and 3/8 in. diameters only, subject to wet-service factor CM = 0.59.
4Cut, Hex, Partially threaded Partially Threaded Hex Head 0.2756""-0.3937"" 2""-24"" Dry, wet ICC-ES ESR-5358 listed SPAX XF series hex head structural wood screw with HCR coating. Approved for dry service conditions. Wet service permitted for 1/4 in., 5/16 in., and 3/8 in. diameters only. Not approved for saltwater exposure.
4Cut, Flat, Long threaded Long Threaded Flat Head 0.315""-0.3937"" 3 1/8""-17 3/4"" Dry, wet ICC-ES ESR-5358 listed SPAX X-Series flat head structural wood screw with HCR coating. Approved for dry service conditions. Wet service only when specified as XF series in diameters 1/4 in. through 3/8 in.
Cut, Flat, Fully threaded Fully Threaded Flat Head 0.315""-0.3937"" 6 1/4""-31 1/2"" Dry ICC-ES ESR-5358 listed SPAX XC series fully threaded flat head structural wood screw with HCR coating. Approved for dry service conditions only.
Cut, Cylinder, Fully threaded Fully Threaded Cylinder Head 0.315"" 6 1/4""-23 5/9"" Dry ICC-ES ESR-5358 listed SPAX XC series cylinder head structural wood screw with HCR coating. Limited to wood-to-wood connections and dry service conditions only.
Sharp, Hex, Partially threaded Partially Threaded Hex Head 0.47244"" 5""-24"" Dry, wet CC-ES ESR-5358 listed SPAX XS series 1/2 in. hex head structural wood screw with HCR coating. Approved for dry and wet service conditions in accordance with NDS, with wet-service factor CM = 0.59.
Threaded, Hex, Fully threaded Fully Threaded Hex Head 0.63"" 31 1/2""-78 3/4"" Dry ICC-ES ESR-5358 listed SPAX XR series 5/8 in. fully threaded hex head structural fastener. Approved for dry service conditions only.
ScrewsScrews
Screw Family Thread Type Head Type Diameter Length Environment Specification
4Cut, Washer, Long threaded Long Threaded Washer Head 0.236""-0.3937"" 3 15/16""-17 23/32"" Dry, wet ICC-ES ESR-5358 listed SPAX XF series structural wood screw with HCR coating. Approved for dry service conditions per NDS. Approved for wet service conditions for 1/4 in., 5/16 in., and 3/8 in. diameters only, with wet-service factor CM = 0.59. Not approved for saltwater or salt spray exposure.
4Cut, Cylinder, Fully threaded Fully Threaded Cylinder Head 0.236"" 3 5/32""-7 7/8"" Dry, wet ICC-ES ESR-5358 listed SPAX X-Series cylinder head structural screw with HCR coating. Limited to wood-to-wood connections only. Approved for dry service conditions. Wet service permitted only for XF series screws in 1/4 in., 5/16 in., and 3/8 in. diameters, with CM = 0.59.
4Cut, Pancake, Partially threaded Partially Threaded Pancake Head 0.2756""-0.3937"" 2""-22"" Dry, wet ICC-ES ESR-5358 listed SPAX XF series pancake head structural wood screw with HCR coating. Approved for dry service conditions. Wet service conditions permitted for 1/4 in., 5/16 in., and 3/8 in. diameters only, subject to wet-service factor CM = 0.59.
4Cut, Hex, Partially threaded Partially Threaded Hex Head 0.2756""-0.3937"" 2""-24"" Dry, wet ICC-ES ESR-5358 listed SPAX XF series hex head structural wood screw with HCR coating. Approved for dry service conditions. Wet service permitted for 1/4 in., 5/16 in., and 3/8 in. diameters only. Not approved for saltwater exposure.
4Cut, Flat, Long threaded Long Threaded Flat Head 0.315""-0.3937"" 3 1/8""-17 3/4"" Dry, wet ICC-ES ESR-5358 listed SPAX X-Series flat head structural wood screw with HCR coating. Approved for dry service conditions. Wet service only when specified as XF series in diameters 1/4 in. through 3/8 in.
Cut, Flat, Fully threaded Fully Threaded Flat Head 0.315""-0.3937"" 6 1/4""-31 1/2"" Dry ICC-ES ESR-5358 listed SPAX XC series fully threaded flat head structural wood screw with HCR coating. Approved for dry service conditions only.
Cut, Cylinder, Fully threaded Fully Threaded Cylinder Head 0.315"" 6 1/4""-23 5/9"" Dry ICC-ES ESR-5358 listed SPAX XC series cylinder head structural wood screw with HCR coating. Limited to wood-to-wood connections and dry service conditions only.
Sharp, Hex, Partially threaded Partially Threaded Hex Head 0.47244"" 5""-24"" Dry, wet CC-ES ESR-5358 listed SPAX XS series 1/2 in. hex head structural wood screw with HCR coating. Approved for dry and wet service conditions in accordance with NDS, with wet-service factor CM = 0.59.
Threaded, Hex, Fully threaded Fully Threaded Hex Head 0.63"" 31 1/2""-78 3/4"" Dry ICC-ES ESR-5358 listed SPAX XR series 5/8 in. fully threaded hex head structural fastener. Approved for dry service conditions only.
ScrewsScrews
Screw Family Thread Type Head Type Diameter Length Environment Specification
4Cut, Washer, Long threaded Long Threaded Washer Head 0.236""-0.3937"" 3 15/16""-17 23/32"" Dry, wet ICC-ES ESR-5358 listed SPAX XF series structural wood screw with HCR coating. Approved for dry service conditions per NDS. Approved for wet service conditions for 1/4 in., 5/16 in., and 3/8 in. diameters only, with wet-service factor CM = 0.59. Not approved for saltwater or salt spray exposure.
4Cut, Cylinder, Fully threaded Fully Threaded Cylinder Head 0.236"" 3 5/32""-7 7/8"" Dry, wet ICC-ES ESR-5358 listed SPAX X-Series cylinder head structural screw with HCR coating. Limited to wood-to-wood connections only. Approved for dry service conditions. Wet service permitted only for XF series screws in 1/4 in., 5/16 in., and 3/8 in. diameters, with CM = 0.59.
4Cut, Pancake, Partially threaded Partially Threaded Pancake Head 0.2756""-0.3937"" 2""-22"" Dry, wet ICC-ES ESR-5358 listed SPAX XF series pancake head structural wood screw with HCR coating. Approved for dry service conditions. Wet service conditions permitted for 1/4 in., 5/16 in., and 3/8 in. diameters only, subject to wet-service factor CM = 0.59.
4Cut, Hex, Partially threaded Partially Threaded Hex Head 0.2756""-0.3937"" 2""-24"" Dry, wet ICC-ES ESR-5358 listed SPAX XF series hex head structural wood screw with HCR coating. Approved for dry service conditions. Wet service permitted for 1/4 in., 5/16 in., and 3/8 in. diameters only. Not approved for saltwater exposure.
4Cut, Flat, Long threaded Long Threaded Flat Head 0.315""-0.3937"" 3 1/8""-17 3/4"" Dry, wet ICC-ES ESR-5358 listed SPAX X-Series flat head structural wood screw with HCR coating. Approved for dry service conditions. Wet service only when specified as XF series in diameters 1/4 in. through 3/8 in.
Cut, Flat, Fully threaded Fully Threaded Flat Head 0.315""-0.3937"" 6 1/4""-31 1/2"" Dry ICC-ES ESR-5358 listed SPAX XC series fully threaded flat head structural wood screw with HCR coating. Approved for dry service conditions only.
Cut, Cylinder, Fully threaded Fully Threaded Cylinder Head 0.315"" 6 1/4""-23 5/9"" Dry ICC-ES ESR-5358 listed SPAX XC series cylinder head structural wood screw with HCR coating. Limited to wood-to-wood connections and dry service conditions only.
Sharp, Hex, Partially threaded Partially Threaded Hex Head 0.47244"" 5""-24"" Dry, wet CC-ES ESR-5358 listed SPAX XS series 1/2 in. hex head structural wood screw with HCR coating. Approved for dry and wet service conditions in accordance with NDS, with wet-service factor CM = 0.59.
Threaded, Hex, Fully threaded Fully Threaded Hex Head 0.63"" 31 1/2""-78 3/4"" Dry ICC-ES ESR-5358 listed SPAX XR series 5/8 in. fully threaded hex head structural fastener. Approved for dry service conditions only.
ScrewsScrews
Screw Family Thread Type Head Type Diameter Length Environment Specification
4Cut, Washer, Long threaded Long Threaded Washer Head 0.236""-0.3937"" 3 15/16""-17 23/32"" Dry, wet ICC-ES ESR-5358 listed SPAX XF series structural wood screw with HCR coating. Approved for dry service conditions per NDS. Approved for wet service conditions for 1/4 in., 5/16 in., and 3/8 in. diameters only, with wet-service factor CM = 0.59. Not approved for saltwater or salt spray exposure.
4Cut, Cylinder, Fully threaded Fully Threaded Cylinder Head 0.236"" 3 5/32""-7 7/8"" Dry, wet ICC-ES ESR-5358 listed SPAX X-Series cylinder head structural screw with HCR coating. Limited to wood-to-wood connections only. Approved for dry service conditions. Wet service permitted only for XF series screws in 1/4 in., 5/16 in., and 3/8 in. diameters, with CM = 0.59.
4Cut, Pancake, Partially threaded Partially Threaded Pancake Head 0.2756""-0.3937"" 2""-22"" Dry, wet ICC-ES ESR-5358 listed SPAX XF series pancake head structural wood screw with HCR coating. Approved for dry service conditions. Wet service conditions permitted for 1/4 in., 5/16 in., and 3/8 in. diameters only, subject to wet-service factor CM = 0.59.
4Cut, Hex, Partially threaded Partially Threaded Hex Head 0.2756""-0.3937"" 2""-24"" Dry, wet ICC-ES ESR-5358 listed SPAX XF series hex head structural wood screw with HCR coating. Approved for dry service conditions. Wet service permitted for 1/4 in., 5/16 in., and 3/8 in. diameters only. Not approved for saltwater exposure.
4Cut, Flat, Long threaded Long Threaded Flat Head 0.315""-0.3937"" 3 1/8""-17 3/4"" Dry, wet ICC-ES ESR-5358 listed SPAX X-Series flat head structural wood screw with HCR coating. Approved for dry service conditions. Wet service only when specified as XF series in diameters 1/4 in. through 3/8 in.
Cut, Flat, Fully threaded Fully Threaded Flat Head 0.315""-0.3937"" 6 1/4""-31 1/2"" Dry ICC-ES ESR-5358 listed SPAX XC series fully threaded flat head structural wood screw with HCR coating. Approved for dry service conditions only.
Cut, Cylinder, Fully threaded Fully Threaded Cylinder Head 0.315"" 6 1/4""-23 5/9"" Dry ICC-ES ESR-5358 listed SPAX XC series cylinder head structural wood screw with HCR coating. Limited to wood-to-wood connections and dry service conditions only.
Sharp, Hex, Partially threaded Partially Threaded Hex Head 0.47244"" 5""-24"" Dry, wet CC-ES ESR-5358 listed SPAX XS series 1/2 in. hex head structural wood screw with HCR coating. Approved for dry and wet service conditions in accordance with NDS, with wet-service factor CM = 0.59.
Threaded, Hex, Fully threaded Fully Threaded Hex Head 0.63"" 31 1/2""-78 3/4"" Dry ICC-ES ESR-5358 listed SPAX XR series 5/8 in. fully threaded hex head structural fastener. Approved for dry service conditions only.
ScrewsScrews
Screw Family Thread Type Head Type Diameter Length Environment Specification
4Cut, Washer, Long threaded Long Threaded Washer Head 0.236""-0.3937"" 3 15/16""-17 23/32"" Dry, wet ICC-ES ESR-5358 listed SPAX XF series structural wood screw with HCR coating. Approved for dry service conditions per NDS. Approved for wet service conditions for 1/4 in., 5/16 in., and 3/8 in. diameters only, with wet-service factor CM = 0.59. Not approved for saltwater or salt spray exposure.
4Cut, Cylinder, Fully threaded Fully Threaded Cylinder Head 0.236"" 3 5/32""-7 7/8"" Dry, wet ICC-ES ESR-5358 listed SPAX X-Series cylinder head structural screw with HCR coating. Limited to wood-to-wood connections only. Approved for dry service conditions. Wet service permitted only for XF series screws in 1/4 in., 5/16 in., and 3/8 in. diameters, with CM = 0.59.
4Cut, Pancake, Partially threaded Partially Threaded Pancake Head 0.2756""-0.3937"" 2""-22"" Dry, wet ICC-ES ESR-5358 listed SPAX XF series pancake head structural wood screw with HCR coating. Approved for dry service conditions. Wet service conditions permitted for 1/4 in., 5/16 in., and 3/8 in. diameters only, subject to wet-service factor CM = 0.59.
4Cut, Hex, Partially threaded Partially Threaded Hex Head 0.2756""-0.3937"" 2""-24"" Dry, wet ICC-ES ESR-5358 listed SPAX XF series hex head structural wood screw with HCR coating. Approved for dry service conditions. Wet service permitted for 1/4 in., 5/16 in., and 3/8 in. diameters only. Not approved for saltwater exposure.
4Cut, Flat, Long threaded Long Threaded Flat Head 0.315""-0.3937"" 3 1/8""-17 3/4"" Dry, wet ICC-ES ESR-5358 listed SPAX X-Series flat head structural wood screw with HCR coating. Approved for dry service conditions. Wet service only when specified as XF series in diameters 1/4 in. through 3/8 in.
Cut, Flat, Fully threaded Fully Threaded Flat Head 0.315""-0.3937"" 6 1/4""-31 1/2"" Dry ICC-ES ESR-5358 listed SPAX XC series fully threaded flat head structural wood screw with HCR coating. Approved for dry service conditions only.
Cut, Cylinder, Fully threaded Fully Threaded Cylinder Head 0.315"" 6 1/4""-23 5/9"" Dry ICC-ES ESR-5358 listed SPAX XC series cylinder head structural wood screw with HCR coating. Limited to wood-to-wood connections and dry service conditions only.
Sharp, Hex, Partially threaded Partially Threaded Hex Head 0.47244"" 5""-24"" Dry, wet CC-ES ESR-5358 listed SPAX XS series 1/2 in. hex head structural wood screw with HCR coating. Approved for dry and wet service conditions in accordance with NDS, with wet-service factor CM = 0.59.
Threaded, Hex, Fully threaded Fully Threaded Hex Head 0.63"" 31 1/2""-78 3/4"" Dry ICC-ES ESR-5358 listed SPAX XR series 5/8 in. fully threaded hex head structural fastener. Approved for dry service conditions only.
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