{"product_id":"simpson-strong-drive-sdcf-timber-cf-screw-0-315-in-x-11-3-4-in-t40-e-coat","title":"Simpson Strong-Drive SDCF TIMBER-CF Screw - 0.315 in. x 11-3\/4 in. T40 (Black E-Coat)","description":"\u003cdiv\u003e\n\u003cp\u003e\u003cstrong\u003eSimpson Strong-Drive SDCF TIMBER-CF Screw - 0.315 in. x 11-3\/4 in., T40, E-Coat\u003c\/strong\u003e by \u003cstrong\u003eSimpson Strong-Tie\u003c\/strong\u003e is a heavy-duty structural fastener engineered for cross-laminated timber (CLT), mass timber construction, and demanding general interior wood applications. Redesigned for reliable long-term performance, this fully-threaded timber screw delivers exceptional withdrawal resistance and clean countersinking in wood-to-wood, wood-to-steel, glulam, and engineered wood assemblies. The black e-coat finish offers a construction-durable, nonmetallic coating suited to interior dry-service environments, while the optimized hardness profile helps mitigate the risk of brittle fracture - making this screw a dependable choice wherever structural integrity matters.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlat head with underhead nibs\u003c\/strong\u003e - enables clean countersinking for a flush, professional finish in CLT, mass timber, and heavy timber applications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeavy-duty, fully-threaded shank\u003c\/strong\u003e - maximizes withdrawal resistance along the entire fastener length for superior holding power in structural wood connections\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSawTooth point\u003c\/strong\u003e - allows fast starts and easy driving, reducing installation torque and eliminating the need for predrilling in most applications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBlack e-coat electrocoating finish\u003c\/strong\u003e - provides a nonmetallic, construction-durable coating for corrosion resistance in interior dry-service conditions while enhancing aesthetics\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDeep T40 6-lobe recess\u003c\/strong\u003e - delivers a secure, cam-out-resistant drive connection for confident installation in demanding structural work\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptimized hardness profile\u003c\/strong\u003e - works together with the e-coat finish to help mitigate the risk of brittle fracture for dependable, long-term structural performance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompliant with CSA O86:24 hydrogen embrittlement requirements\u003c\/strong\u003e - meets recognized industry standards, giving engineers and builders confidence in code-sensitive mass timber and CLT projects\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e0.230 in. shank diameter with 0.315 in. head diameter\u003c\/strong\u003e - proportioned for strength in heavy timber connections while seating cleanly below the wood surface\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhy This Product\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuilt for mass timber and CLT construction\u003c\/strong\u003e - the SDCF TIMBER-CF screw is specifically designed for cross-laminated timber, glulam, engineered wood multi-ply fastening, and heavy timber framing, making it a targeted solution rather than a general-purpose substitute\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNo predrilling required in most applications\u003c\/strong\u003e - the SawTooth point reduces installation torque and speeds up workflow, cutting labor time on large-scale timber framing, beam reinforcement, and floor-to-floor assemblies\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStructural confidence backed by industry compliance\u003c\/strong\u003e - compliance with CSA O86:24 hydrogen embrittlement requirements means this fastener is appropriate for engineered wood applications where code conformance is required\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLong-term reliability through material science\u003c\/strong\u003e - the combination of black e-coat electrocoating and an optimized hardness profile actively reduces brittle fracture risk, providing durable performance in interior structural connections over the life of the building\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Simpson Strong-Tie\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Name:\u003c\/strong\u003e Strong-Drive SDCF TIMBER-CF Screw\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength:\u003c\/strong\u003e 11-3\/4 in.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter:\u003c\/strong\u003e 0.230 in.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHead Diameter:\u003c\/strong\u003e 0.590 in.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHead Type:\u003c\/strong\u003e Flat Head with Nibs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrive Type:\u003c\/strong\u003e T40 6-Lobe\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePoint Type:\u003c\/strong\u003e SawTooth Point\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Length:\u003c\/strong\u003e 11 1\/3 in.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating:\u003c\/strong\u003e E-coat Electrocoating\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e E-coat Electrocoating\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Black\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cstrong\u003e\n\u003ch3\u003eAvailable Pack Options\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSDCF8X300-R50:\u003c\/strong\u003e 50 Pk - includes T40, 6-lobe driver bit (replacement bit: BIT40T-134-R2)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSDCF8X300:\u003c\/strong\u003e 250 Pk - includes T40, 6-lobe driver bit (replacement bit: BIT40T-134-R2)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApproved Applications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMass Timber \/ Cross-Laminated Timber\u003c\/li\u003e\n\u003cli\u003eHeavy Timber\u003c\/li\u003e\n\u003cli\u003eTimber Framing\u003c\/li\u003e\n\u003cli\u003eGlulam\u003c\/li\u003e\n\u003cli\u003eEngineered Wood - Multi-Ply Fastening\u003c\/li\u003e\n\u003cli\u003eEngineered Wood\u003c\/li\u003e\n\u003cli\u003eBeam Reinforcement\u003c\/li\u003e\n\u003cli\u003eFastening Wood-to-Wood\u003c\/li\u003e\n\u003cli\u003eFastening Wood-to-Steel\u003c\/li\u003e\n\u003cli\u003eFastening Support Beams\u003c\/li\u003e\n\u003cli\u003eFastening Simpson Strong-Tie Connectors\u003c\/li\u003e\n\u003cli\u003eFastening Wall-to-Wall\u003c\/li\u003e\n\u003cli\u003eFastening Floor-to-Floor\u003c\/li\u003e\n\u003cli\u003eFastening Stud-to-Plate\u003c\/li\u003e\n\u003cli\u003eFastening Butt Joists\u003c\/li\u003e\n\u003cli\u003eSurface Splines\u003c\/li\u003e\n\u003cli\u003eGeneral Interior\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eT40, 6-lobe driver bit (replacement bit: BIT40T-134-R2)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/strong\u003e\n\u003c\/div\u003e","brand":"SIMPSON","offers":[{"title":"50 Pk","offer_id":67653510299878,"sku":"SDCF8X300-R50","price":254.18,"currency_code":"USD","in_stock":true},{"title":"250 Pk","offer_id":67653510332646,"sku":"SDCF8X300","price":1167.34,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0398\/5188\/4705\/files\/SDCF8X300-R50_00707392028499_Product_Photo_01.jpg?v=1791508384","url":"https:\/\/factorydirectsupply.com\/products\/simpson-strong-drive-sdcf-timber-cf-screw-0-315-in-x-11-3-4-in-t40-e-coat","provider":"Factory Direct Supply","version":"1.0","type":"link"}