{"product_id":"simpson-strong-drive-sdcf-timber-cf-screw-0-470-in-x-17-3-4-in-t50-e-coat","title":"Simpson Strong-Drive SDCF TIMBER-CF Screw - 0.470 in. x 17-3\/4 in. T50 (Black E-Coat)","description":"\u003cdiv\u003e\n\u003cp\u003e\u003cstrong\u003eSimpson Strong-Tie Strong-Drive SDCF TIMBER-CF Screw - 0.470 in. x 17-3\/4 in., T50, E-Coat\u003c\/strong\u003e is a heavy-duty structural screw engineered by Simpson Strong-Tie for cross-laminated timber (CLT), mass timber construction, glulam beams, and general interior wood-to-wood fastening applications. The redesigned SDCF delivers uncompromised holding strength in demanding heavy timber and engineered wood assemblies, combining a fully-threaded shank for superior withdrawal resistance with a black e-coat electrocoating finish that resists corrosion in interior dry-service environments. Whether you are fastening support beams, reinforcing multi-ply engineered lumber, or connecting wall-to-wall framing, this structural screw is built for professional-grade performance where reliability and precision matter most.\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 throughout the entire fastened connection, providing structural integrity in mass timber and CLT applications\u003c\/li\u003e\n\u003cli\u003eSawTooth point - starts fast and drives easily, reducing installation torque and eliminating the need for predrilling in most applications to speed up your workflow\u003c\/li\u003e\n\u003cli\u003eBlack e-coat electrocoating finish - provides a construction-durable nonmetallic coating that resists corrosion in interior dry-service conditions while enhancing aesthetics\u003c\/li\u003e\n\u003cli\u003eOptimized hardness profile - works alongside the e-coat finish to help mitigate the risk of brittle fracture for reliable, long-term structural performance\u003c\/li\u003e\n\u003cli\u003eDeep T50 6-lobe recess - delivers a secure drive connection that reduces cam-out and maintains control during installation\u003c\/li\u003e\n\u003cli\u003eCompliant with CSA O86:24 hydrogen embrittlement requirements - meets code standards for structural wood screw applications in regulated environments\u003c\/li\u003e\n\u003cli\u003e17-3\/4 in. length with 16-3\/4 in. thread length - provides deep thread engagement through thick timber members for maximum holding power in heavy timber framing\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 is specifically designed for cross-laminated timber and mass timber assemblies where structural integrity under load demands more than a standard wood screw can provide\u003c\/li\u003e\n\u003cli\u003eNo predrilling required in most applications - the SawTooth point cuts through dense wood fibers quickly, saving labor time and reducing the number of tools needed on the job site\u003c\/li\u003e\n\u003cli\u003eCorrosion resistance without metallic coating - the black e-coat electrocoating is a nonmetallic finish that protects the fastener in interior dry-service environments while keeping a clean, consistent black appearance across the installation\u003c\/li\u003e\n\u003cli\u003eEngineered for code-compliant structural connections - compliance with CSA O86:24 hydrogen embrittlement requirements means this fastener meets recognized standards for structural wood applications, giving contractors and engineers confidence in the connection\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 17-3\/4 in.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Length:\u003c\/strong\u003e 16-3\/4 in.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter:\u003c\/strong\u003e 0.315 in.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHead Diameter:\u003c\/strong\u003e 0.875 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 T50 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\u003eSDCF12X450-R25:\u003c\/strong\u003e 25 Pk - includes T50, 6-lobe driver bit (replacement bit: BIT50T-2-R1)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSDCF12X450:\u003c\/strong\u003e 100 Pk - includes T50, 6-lobe driver bit (replacement bit: BIT50T-2-R1)\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\u003c\/strong\u003e\n\u003c\/div\u003e","brand":"SIMPSON","offers":[{"title":"25 Pk","offer_id":67653512790246,"sku":"SDCF12X450-R25","price":595.15,"currency_code":"USD","in_stock":true},{"title":"100 Pk","offer_id":67653512823014,"sku":"SDCF12X450","price":2230.38,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0398\/5188\/4705\/files\/SDCF12X450-R25_00707392028949_Product_Photo_01.jpg?v=1791508447","url":"https:\/\/factorydirectsupply.com\/products\/simpson-strong-drive-sdcf-timber-cf-screw-0-470-in-x-17-3-4-in-t50-e-coat","provider":"Factory Direct Supply","version":"1.0","type":"link"}