{"product_id":"simpson-strong-drive-sdcfc-timber-cfc-screw-0-390-in-x-23-5-8-in-t50-e-coat","title":"Simpson Strong-Drive SDCFC TIMBER-CFC Screw - 0.390 in. x 23-5\/8 in. T50 (Black E-Coat)","description":"\u003cdiv\u003e\n\u003cp\u003eThe \u003cstrong\u003eSimpson Strong-Tie Strong-Drive SDCFC TIMBER-CFC Screw\u003c\/strong\u003e is a heavy-duty structural fastener engineered for demanding large-member wood construction applications. At 0.390 in. diameter and 23 5\/8 in. length, this long timber screw delivers exceptional withdrawal resistance in mass timber, glulam, cross-laminated timber, and multi-ply engineered wood assemblies. The fully threaded shank, SawTooth point, and deep T50 6-lobe drive recess combine to make installation fast and reliable - without predrilling in most applications. The black e-coat electrocoating finish offers both a clean aesthetic and durable corrosion resistance suited to interior dry-service conditions. Each box contains 50 screws plus one included driver bit, making this an efficient choice for structural timber framing and beam reinforcement projects.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact cylinder head design\u003c\/strong\u003e - countersinks flush for a clean exposed finish or a fully concealed installation, depending on the application\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeavy-duty, fully threaded shank (0.290 in. shank diameter, 22 5\/8 in. thread length)\u003c\/strong\u003e - maximizes withdrawal resistance along the entire fastener length for superior holding power in large timber members\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSawTooth point\u003c\/strong\u003e - enables fast starts and easy driving while reducing installation torque, eliminating the need for predrilling in most applications and saving significant labor time\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBlack e-coat electrocoating finish\u003c\/strong\u003e - provides a construction-durable nonmetallic coating for corrosion resistance in interior dry-service applications, while contributing to a professional aesthetic when left exposed\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDeep T50 6-lobe drive recess\u003c\/strong\u003e - delivers a secure, high-torque drive engagement that reduces cam-out and improves driver control during installation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompliant with CSA O86:24 hydrogen embrittlement requirements\u003c\/strong\u003e - the optimized hardness profile helps mitigate the risk of brittle fracture for reliable, long-term structural performance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e50 screws per box\u003c\/strong\u003e - packaged for job-site efficiency on high-volume timber framing and beam fastening tasks\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhy This Product\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned specifically for large structural members - including mass timber, cross-laminated timber, glulam beams, and multi-ply engineered wood - this 23 5\/8 in. screw reaches connection depths that standard fasteners cannot achieve, making it the right tool for heavy timber framing and beam reinforcement work.\u003c\/li\u003e\n\u003cli\u003eThe SawTooth point eliminates predrilling in most applications, reducing setup time and labor cost without sacrificing connection integrity - a practical advantage on fast-moving commercial and residential timber projects.\u003c\/li\u003e\n\u003cli\u003eThe black e-coat finish does double duty: it protects against corrosion in interior dry-service environments and delivers a polished, professional appearance when screws are left exposed - meeting both structural and aesthetic requirements in a single fastener.\u003c\/li\u003e\n\u003cli\u003eCSA O86:24 hydrogen embrittlement compliance and an optimized hardness profile mean this screw is engineered to resist brittle fracture over time, supporting the long-term reliability demands of structural connections in engineered wood and heavy timber assemblies.\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\u003eModel Number:\u003c\/strong\u003e SDCFC10X600\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Name:\u003c\/strong\u003e Strong-Drive SDCFC TIMBER-CFC Screw\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength:\u003c\/strong\u003e 23 5\/8 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 0.528 in.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Length:\u003c\/strong\u003e 22 5\/8 in.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHead Type:\u003c\/strong\u003e Cylinder Head\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\u003eApproved Applications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eEngineered Wood\u003c\/li\u003e\n\u003cli\u003eFastening Wood-to-Wood\u003c\/li\u003e\n\u003cli\u003eTimber Framing\u003c\/li\u003e\n\u003cli\u003eBeam Reinforcement\u003c\/li\u003e\n\u003cli\u003eFastening Wall-to-Wall\u003c\/li\u003e\n\u003cli\u003eFastening Support Beams\u003c\/li\u003e\n\u003cli\u003eHeavy Timber\u003c\/li\u003e\n\u003cli\u003eGlulam\u003c\/li\u003e\n\u003cli\u003eFastening Butt Joists\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\u003c\/ul\u003e\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e50x SDCFC10X600 Timber-CFC Screws (0.390 in. x 23 5\/8 in., T50, Black E-Coat)\u003c\/li\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":"Default Title","offer_id":67653509644518,"sku":"SDCFC10X600","price":1032.11,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0398\/5188\/4705\/files\/SDCFC10X600_00707392028536_Product_Photo_01.jpg?v=1791499594","url":"https:\/\/factorydirectsupply.com\/products\/simpson-strong-drive-sdcfc-timber-cfc-screw-0-390-in-x-23-5-8-in-t50-e-coat","provider":"Factory Direct Supply","version":"1.0","type":"link"}