{"product_id":"simpson-strong-drive-sdcf-timber-cf-screw-0-315-in-x-7-7-8-in-t40-e-coat","title":"Simpson Strong-Drive SDCF TIMBER-CF Screw - 0.315 in. x 7-7\/8 in. T40 (Black E-Coat)","description":"\u003cdiv\u003e\n\u003cp\u003e\u003cstrong\u003eSimpson Strong-Drive SDCF TIMBER-CF Screw - 0.315 in. x 7-7\/8 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, glulam assemblies, and general interior wood-to-wood fastening applications. Featuring a black e-coat electrocoating finish, a SawTooth point for fast starts without predrilling, and a flat head with underhead nibs for clean countersinking, this timber screw delivers the reliable strength and flush finish that demanding structural applications require.\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 surface for a professional finish in exposed timber and CLT applications\u003c\/li\u003e\n\u003cli\u003eHeavy-duty, fully-threaded shank - maximizes withdrawal resistance throughout the entire fastener length, providing superior holding power in structural wood connections\u003c\/li\u003e\n\u003cli\u003eSawTooth point - cuts through wood fibers for a fast, easy start and reduced installation torque, eliminating the need for predrilling in most applications and speeding up the job\u003c\/li\u003e\n\u003cli\u003eBlack e-coat electrocoating finish - provides a durable nonmetallic coating that resists corrosion in interior dry-service environments while enhancing aesthetics in visible timber applications\u003c\/li\u003e\n\u003cli\u003eDeep T40 6-lobe drive recess - delivers a secure bit-to-fastener connection that reduces cam-out and allows confident, high-torque driving in dense timber\u003c\/li\u003e\n\u003cli\u003eOptimized hardness profile with e-coat finish - helps mitigate the risk of brittle fracture, supporting long-term structural reliability in mass timber assemblies\u003c\/li\u003e\n\u003cli\u003eCompliant with CSA O86:24 hydrogen embrittlement requirements - meets current Canadian standard requirements for structural timber screws, making it suitable for code-compliant mass timber projects\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhy This Product\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned specifically for mass timber and CLT construction - this screw was redesigned by Simpson Strong-Tie to meet the structural demands of cross-laminated timber and heavy timber framing, where uncompromised strength and reliable performance are critical\u003c\/li\u003e\n\u003cli\u003eNo predrilling required in most applications - the SawTooth point reduces installation time and labor cost on large-scale timber projects without sacrificing drive quality or withdrawal strength\u003c\/li\u003e\n\u003cli\u003eAesthetics matter in exposed timber - the black e-coat finish blends with dark wood tones common in mass timber interiors, delivering a clean, finished look alongside structural performance\u003c\/li\u003e\n\u003cli\u003eVersatile across a wide range of structural connections - suitable for wood-to-wood, wood-to-steel, engineered wood multi-ply fastening, beam reinforcement, surface splines, stud-to-plate, and Simpson Strong-Tie connector installations\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 7-7\/8 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 7-1\/2 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\u003eSDCF8X200-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\u003eSDCF8X200:\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 (CLT)\u003c\/li\u003e\n\u003cli\u003eHeavy Timber and Timber Framing\u003c\/li\u003e\n\u003cli\u003eGlulam Beam Fastening\u003c\/li\u003e\n\u003cli\u003eFastening Wood-to-Wood\u003c\/li\u003e\n\u003cli\u003eFastening Wood-to-Steel\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\u003eFastening Support Beams\u003c\/li\u003e\n\u003cli\u003eBeam Reinforcement\u003c\/li\u003e\n\u003cli\u003eSurface Splines\u003c\/li\u003e\n\u003cli\u003eGeneral Interior Applications\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\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":67653510988006,"sku":"SDCF8X200-R50","price":164.38,"currency_code":"USD","in_stock":true},{"title":"250 Pk","offer_id":67653511020774,"sku":"SDCF8X200","price":689.3,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0398\/5188\/4705\/files\/SDCF8X200-R50_00707392028970_Product_Photo_01.jpg?v=1791508420","url":"https:\/\/factorydirectsupply.com\/products\/simpson-strong-drive-sdcf-timber-cf-screw-0-315-in-x-7-7-8-in-t40-e-coat","provider":"Factory Direct Supply","version":"1.0","type":"link"}