{"product_id":"simpson-strong-drive-sdcf-timber-cf-screw-0-315-in-x-6-1-4-in-t40-e-coat","title":"Simpson Strong-Drive SDCF TIMBER-CF Screw - 0.315 in. x 6-1\/4 in. T40 (Black E-Coat)","description":"\u003cdiv\u003e\n\u003cp\u003e\u003cstrong\u003eSimpson Strong-Drive SDCF TIMBER-CF Screw - 0.315 in. x 6-1\/4 in., T40, E-Coat\u003c\/strong\u003e by Simpson Strong-Tie is a heavy-duty structural screw engineered for cross-laminated timber (CLT), mass timber construction, and general interior wood-to-wood fastening applications. The redesigned SDCF TIMBER-CF delivers uncompromised holding strength in demanding structural assemblies - from glulam beams and engineered wood panels to timber framing and beam reinforcement. Its black e-coat electrocoating provides a construction-durable, nonmetallic finish suited for interior dry-service conditions, while the fully-threaded shank and SawTooth point work together for fast, clean installation without predrilling in most applications.\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 so the screw sits flush with the wood surface, producing a finished appearance without additional work\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFully-threaded shank with 0.230 in. shank diameter\u003c\/strong\u003e - maximizes withdrawal resistance along the full fastener length, delivering structural-grade holding power in heavy timber and multi-ply engineered wood\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSawTooth point for fast starts and easy driving\u003c\/strong\u003e - reduces installation torque and eliminates the need for predrilling in most applications, saving time and effort on the job\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBlack e-coat electrocoating finish\u003c\/strong\u003e - provides a corrosion-resistant, nonmetallic coating suited for interior dry-service environments, while also enhancing the overall appearance of exposed fasteners in finished mass timber assemblies\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDeep T40 6-lobe drive recess\u003c\/strong\u003e - provides a secure bit engagement that reduces cam-out and allows for confident, high-torque driving in dense timber\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptimized hardness profile compliant with CSA O86:24 hydrogen embrittlement requirements\u003c\/strong\u003e - mitigates the risk of brittle fracture for reliable, long-term structural performance in mass timber applications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e6-1\/4 in. length with 5-7\/8 in. thread length\u003c\/strong\u003e - provides deep thread engagement for superior pull-through resistance in thick timber members and multi-ply fastening scenarios\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhy This Product\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePurpose-built for mass timber and CLT construction\u003c\/strong\u003e - the SDCF TIMBER-CF is specifically designed for cross-laminated timber and heavy timber assemblies where structural integrity and long-term performance are non-negotiable, making it the right choice for modern mass timber projects\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNo predrilling required in most applications\u003c\/strong\u003e - the SawTooth point reduces installation torque and eliminates an extra step in most fastening situations, helping crews work faster in structural glulam, engineered wood, and timber framing applications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlush finish without extra finishing work\u003c\/strong\u003e - the flat head with underhead nibs countersinks cleanly into the wood surface, which matters in exposed CLT ceilings, finished beam applications, and aesthetically conscious mass timber interiors\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngineered to resist brittle fracture\u003c\/strong\u003e - the optimized hardness profile and e-coat finish together help reduce the risk of fastener failure over time, giving structural designers and builders added confidence in long-term performance\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 6-1\/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\u003eThread Length:\u003c\/strong\u003e 5-7\/8 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\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\u003eSDCF8X160-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\u003eSDCF8X160:\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\u003eFastening Wood-to-Wood\u003c\/li\u003e\n\u003cli\u003eGeneral Interior\u003c\/li\u003e\n\u003cli\u003eFastening Support Beams\u003c\/li\u003e\n\u003cli\u003eHeavy Timber\u003c\/li\u003e\n\u003cli\u003eMass Timber \/ Cross-Laminated Timber\u003c\/li\u003e\n\u003cli\u003eEngineered Wood - Multi-Ply Fastening\u003c\/li\u003e\n\u003cli\u003eFastening Simpson Strong-Tie Connectors\u003c\/li\u003e\n\u003cli\u003eEngineered Wood\u003c\/li\u003e\n\u003cli\u003eFastening Wood-to-Steel\u003c\/li\u003e\n\u003cli\u003eTimber Framing\u003c\/li\u003e\n\u003cli\u003eSurface Splines\u003c\/li\u003e\n\u003cli\u003eBeam Reinforcement\u003c\/li\u003e\n\u003cli\u003eFastening Wall-to-Wall\u003c\/li\u003e\n\u003cli\u003eGlulam\u003c\/li\u003e\n\u003cli\u003eFastening Butt Joists\u003c\/li\u003e\n\u003cli\u003eFastening Floor-to-Floor\u003c\/li\u003e\n\u003cli\u003eFastening Stud-to-Plate\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":67653510922470,"sku":"SDCF8X160-R50","price":116.43,"currency_code":"USD","in_stock":true},{"title":"250 Pk","offer_id":67653510955238,"sku":"SDCF8X160","price":465.53,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0398\/5188\/4705\/files\/SDCF8X160-R50_00707392028413_Product_Photo_01.jpg?v=1791508410","url":"https:\/\/factorydirectsupply.com\/products\/simpson-strong-drive-sdcf-timber-cf-screw-0-315-in-x-6-1-4-in-t40-e-coat","provider":"Factory Direct Supply","version":"1.0","type":"link"}