{"product_id":"simpson-strong-drive-sdcfc-timber-cfc-screw-0-390-in-x-39-3-8in-t50-e-coat","title":"Simpson Strong-Drive SDCFC TIMBER-CFC Screw - 0.390 in. x 39-3\/8in. T50 (Black E-Coat)","description":"\u003cdiv\u003e\n\u003cp\u003e\u003cstrong\u003eSimpson Strong-Drive SDCFC TIMBER-CFC Screw - 0.390 in. x 39 3\/8 in., T50 6-Lobe, E-Coat, 50-Pack\u003c\/strong\u003e by Simpson Strong-Tie is a heavy-duty structural wood screw engineered for demanding large-member timber applications, including mass timber, cross-laminated timber, glulam, and engineered wood assemblies. At nearly 40 inches in length with a fully threaded shank, this fastener delivers exceptional withdrawal resistance in wood-to-wood connections where conventional screws fall short. The black e-coat electrocoating finish provides a clean, finished appearance whether the screw is left exposed or countersunk - making it a practical choice for both structural integrity and visual consistency in interior dry-service timber framing projects.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eCompact cylinder head - helps countersink the screw flush for a clean, concealed or exposed finish on heavy timber and mass timber connections\u003c\/li\u003e\n\u003cli\u003eHeavy-duty, fully threaded shank spanning 38 3\/8 in. of thread length - maximizes withdrawal resistance throughout the entire fastener for superior holding power in large structural members\u003c\/li\u003e\n\u003cli\u003eSawTooth point design - enables fast starts and easy driving, reducing installation torque and eliminating the need for predrilling in most timber applications\u003c\/li\u003e\n\u003cli\u003eBlack e-coat electrocoating finish - provides a construction-durable nonmetallic coating for corrosion resistance in interior dry-service conditions while delivering a consistent, aesthetically clean appearance\u003c\/li\u003e\n\u003cli\u003eDeep T50 6-lobe recess - creates a secure, slip-resistant drive engagement, reducing cam-out risk during installation of these long, high-torque fasteners\u003c\/li\u003e\n\u003cli\u003eCompliant with CSA O86:24 hydrogen embrittlement requirements - the optimized hardness profile helps mitigate risk of brittle fracture for reliable, long-term structural performance\u003c\/li\u003e\n\u003cli\u003e0.390 in. head diameter (0.528 in. assembled head) with a 0.290 in. shank diameter - engineered proportions that balance strength, driveability, and a tidy finished profile\u003c\/li\u003e\n\u003cli\u003ePackaged 50 per box - provides a practical quantity for beam reinforcement and multi-ply fastening jobs requiring multiple full-length structural screws\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 heavy timber structures - at 39 3\/8 in. long with a fully threaded 38 3\/8 in. thread, this screw reaches deep into glulam, cross-laminated timber, and engineered wood multi-ply assemblies where shorter fasteners cannot provide adequate connection strength.\u003c\/li\u003e\n\u003cli\u003eNo predrilling required in most applications - the SawTooth point reduces installation torque and simplifies the fastening process for contractors working on timber framing, butt joist connections, and wall-to-wall assemblies, saving time and labor on large jobs.\u003c\/li\u003e\n\u003cli\u003eOptimized for long-term interior structural use - the black e-coat electrocoating finish combined with a carefully controlled hardness profile addresses both corrosion resistance in dry-service environments and the risk of hydrogen embrittlement, meeting CSA O86:24 requirements for structural confidence.\u003c\/li\u003e\n\u003cli\u003eVersatile across a wide range of structural connections - from fastening Simpson Strong-Tie connectors to reinforcing support beams and engineered wood multi-ply members, this single screw covers a broad scope of heavy timber and mass timber fastening tasks.\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 SDCFC10X1000\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 39 3\/8 in.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Length:\u003c\/strong\u003e 38 3\/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\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\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":67653509873894,"sku":"SDCFC10X1000","price":1665.44,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0398\/5188\/4705\/files\/SDCFC10X1000_00707392028550_Product_Photo_01.jpg?v=1791499605","url":"https:\/\/factorydirectsupply.com\/products\/simpson-strong-drive-sdcfc-timber-cfc-screw-0-390-in-x-39-3-8in-t50-e-coat","provider":"Factory Direct Supply","version":"1.0","type":"link"}