{"product_id":"simpson-strong-drive-sdcf-timber-cf-screw-0-315-in-x-9-1-2-in-t40-e-coat","title":"Simpson Strong-Drive SDCF TIMBER-CF Screw - 0.315 in. x 9-1\/2 in. T40 (Black E-Coat)","description":"\u003cdiv\u003e\n\u003cp\u003e\u003cstrong\u003eSimpson Strong-Drive SDCF TIMBER-CF Screw - 0.315 in. x 9-1\/2 in., T40, E-Coat\u003c\/strong\u003e by Simpson Strong-Tie is a structural wood screw engineered for cross-laminated timber (CLT), mass timber construction, and demanding general interior applications. With a fully-threaded, heavy-duty shank and SawTooth point, this fastener drives fast and clean into engineered wood, glulam beams, multi-ply assemblies, and timber framing connections - without predrilling in most applications. The black e-coat electrocoating finish delivers a construction-durable nonmetallic surface that resists corrosion in interior dry-service environments while keeping aesthetics clean and flush for visible timber connections.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFlat head with underhead nibs - enables clean countersinking so the screw sits flush with the wood surface for a finished, professional appearance\u003c\/li\u003e\n\u003cli\u003eHeavy-duty, fully-threaded shank - maximizes withdrawal resistance across the full fastener length, delivering structural holding power in CLT, glulam, and engineered wood assemblies\u003c\/li\u003e\n\u003cli\u003eSawTooth point - cuts into wood fiber quickly for fast starts and reduced installation torque, eliminating the need for predrilling in most applications\u003c\/li\u003e\n\u003cli\u003eBlack e-coat electrocoating finish - provides a construction-durable nonmetallic coating for corrosion resistance in interior dry-service applications, while supporting optimized hardness that helps mitigate the risk of brittle fracture\u003c\/li\u003e\n\u003cli\u003eDeep T40 6-lobe drive recess - ensures a secure, positive engagement between bit and fastener, reducing cam-out during installation\u003c\/li\u003e\n\u003cli\u003eCompliant with CSA O86:24 hydrogen embrittlement requirements - confirms the fastener meets industry standards for structural reliability and long-term performance in mass timber applications\u003c\/li\u003e\n\u003cli\u003e0.315 in. head diameter, 0.230 in. shank diameter, 9 in. thread length - engineered proportions that balance driving ease with structural strength in thick timber members\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhy This Product\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePurpose-built for mass timber and CLT construction - the SDCF TIMBER-CF screw is specifically designed for cross-laminated timber, glulam, and multi-ply engineered wood fastening where structural integrity and load performance are non-negotiable\u003c\/li\u003e\n\u003cli\u003eEliminates predrilling in most applications - the SawTooth point reduces installation time and labor on heavy timber projects, making it a practical choice for high-volume timber connections\u003c\/li\u003e\n\u003cli\u003eCSA O86:24 compliant for hydrogen embrittlement - meets rigorous structural standards, giving specifiers and installers confidence in long-term fastener performance in demanding interior timber applications\u003c\/li\u003e\n\u003cli\u003eFlush, clean finish from a single fastener - the flat head with nibs countersinks automatically, and the black e-coat finish blends with exposed timber for a refined result in architectural mass timber work\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 9-1\/2 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 9 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\u003eSDCF8X240-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\u003eSDCF8X240:\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":67653511446758,"sku":"SDCF8X240-R50","price":187.62,"currency_code":"USD","in_stock":true},{"title":"250 Pk","offer_id":67653511479526,"sku":"SDCF8X240","price":792.44,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0398\/5188\/4705\/files\/SDCF8X240-R50_00707392028994_Product_Photo_01.jpg?v=1791508431","url":"https:\/\/factorydirectsupply.com\/products\/simpson-strong-drive-sdcf-timber-cf-screw-0-315-in-x-9-1-2-in-t40-e-coat","provider":"Factory Direct Supply","version":"1.0","type":"link"}