{"product_id":"simpson-strong-drive-sdcf-timber-cf-screw-0-390-in-x-15-3-4-in-t50-e-coat","title":"Simpson Strong-Drive SDCF TIMBER-CF Screw - 0.390 in. x 15-3\/4 in. T50 (Black E-Coat)","description":"\u003cdiv\u003e\n\u003cp\u003e\u003cstrong\u003eSimpson Strong-Drive SDCF TIMBER-CF Screw - 0.390 in. x 15 3\/4 in., T50, E-Coat\u003c\/strong\u003e by Simpson Strong-Tie is a heavy-duty structural fastener engineered for cross-laminated timber (CLT), mass timber construction, glulam assemblies, and general interior wood-to-wood applications. The redesigned SDCF TIMBER-CF screw delivers uncompromised strength in demanding timber framing, beam reinforcement, and engineered wood fastening, combining a fully threaded shank for superior withdrawal resistance with a SawTooth point that starts fast and drives easily without predrilling in most applications. The black e-coat electrocoating finish enhances aesthetics while providing a construction-durable, nonmetallic layer of corrosion resistance suited to interior dry-service environments.\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 and a flush finish, resulting in a professional surface appearance on CLT panels, glulam beams, and mass timber assemblies\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeavy-Duty, Fully-Threaded Shank (0.290 in. shank diameter, 15 1\/4 in. thread length)\u003c\/strong\u003e - maximizes withdrawal resistance along the entire fastener length, keeping joints tight under load in structural timber applications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSawTooth Point\u003c\/strong\u003e - promotes fast starts and reduced installation torque, eliminating the need for predrilling in most applications and speeding up heavy timber and mass timber workflows\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBlack E-Coat Electrocoating Finish\u003c\/strong\u003e - provides a nonmetallic, construction-durable coating that resists corrosion in interior dry-service conditions while contributing to a clean, finished appearance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDeep T50 6-Lobe Recess Drive\u003c\/strong\u003e - delivers a secure, slip-resistant connection between the bit and screw head, reducing cam-out and improving driving control during installation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptimized Hardness Profile\u003c\/strong\u003e - works together with the e-coat finish to mitigate the risk of brittle fracture, supporting reliable 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 North American timber engineering standards, giving engineers and builders confidence in code-compliant installations\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhy This Product\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDesigned specifically for mass timber and CLT construction\u003c\/strong\u003e - the SDCF TIMBER-CF screw is purpose-built for cross-laminated timber, glulam, and engineered wood assemblies where standard fasteners may lack the length, thread engagement, or strength needed for structural performance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEliminates predrilling in most applications\u003c\/strong\u003e - the SawTooth point reduces installation torque and bores its own entry path, saving time and labor on heavy timber framing, beam reinforcement, and multi-ply engineered wood fastening\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSupports both wood-to-wood and wood-to-steel connections\u003c\/strong\u003e - the approved applications include fastening wood to steel as well as stud-to-plate, floor-to-floor, and wall-to-wall assemblies, making this a versatile structural screw across a wide range of interior framing scenarios\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eE-coat finish reduces brittle fracture risk\u003c\/strong\u003e - the black electrocoating finish and optimized hardness profile address a key concern in long structural screws, giving installers confidence in joint integrity over the life of the structure\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 15 3\/4 in.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Length:\u003c\/strong\u003e 15 1\/4 in.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter:\u003c\/strong\u003e 0.290 in.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHead Diameter:\u003c\/strong\u003e 0.725 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\u003eSDCF10X400-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\u003eSDCF10X400:\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\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eT50, 6-lobe driver bit (replacement bit: BIT50T-2-R1)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/strong\u003e\n\u003c\/div\u003e","brand":"SIMPSON","offers":[{"title":"25 Pk","offer_id":67653511872742,"sku":"SDCF10X400-R25","price":269.92,"currency_code":"USD","in_stock":true},{"title":"100 Pk","offer_id":67653511905510,"sku":"SDCF10X400","price":1010.97,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0398\/5188\/4705\/files\/SDCF10X400-R25_00707392028826_Product_Photo_01.jpg?v=1791561507","url":"https:\/\/factorydirectsupply.com\/products\/simpson-strong-drive-sdcf-timber-cf-screw-0-390-in-x-15-3-4-in-t50-e-coat","provider":"Factory Direct Supply","version":"1.0","type":"link"}