{"product_id":"simpson-strong-drive-sdhr-combo-head-screw-12-mm-x-160-mm-black-e-coat","title":"Simpson Strong-Drive SDHR COMBO-HEAD Screw - 12 mm x 160 mm, Black E-Coat","description":"\u003cdiv\u003e\n\u003cp\u003eThe \u003cstrong\u003eSimpson Strong-Tie Strong-Drive SDHR Combo-Head Screw - 12 mm x 160 mm in Black E-Coat\u003c\/strong\u003e is a heavy-duty structural fastener engineered for cross-laminated timber (CLT), mass timber construction, and general interior wood applications. Featuring a distinctive combination head that accepts either a 17 mm hex-head driver bit or a T40 6-lobe driver bit, this partially-threaded screw delivers exceptional connection strength - particularly when fastening steel plate or angle connectors to wood. The black e-coat electrocoating finish provides a durable, nonmetallic, friction-reducing barrier suited to dry-service interior environments, while the robust knurled shank and Type-17 point make it self-drilling in most wood assemblies without the need for predrilling.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBlack e-coat electrocoating finish\u003c\/strong\u003e - provides a construction-durable, nonmetallic and friction-reducing coating that resists corrosion in interior dry-service conditions, keeping connections secure over time without the bulk of metallic coatings\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptimized hardness profile\u003c\/strong\u003e - helps mitigate field embrittlement issues and is compliant with CSA O86:24 hydrogen embrittlement requirements, giving installers confidence in structural reliability under demanding conditions\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCombination head accepts T40 6-lobe or 17 mm hex-head driver bit\u003c\/strong\u003e - gives crews flexibility to use whichever tool is on hand, reducing downtime and driver bit changes on the job site\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeavy-duty shank with robust knurl\u003c\/strong\u003e - reduces installation torque so structural screws can be driven with less effort, improving speed and reducing tool wear during large-scale timber framing or CLT assembly\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType-17 point\u003c\/strong\u003e - ensures fast starts, reduces installation torque, and eliminates the need for predrilling in most applications, cutting labor time on mass timber and engineered wood projects\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDesigned for use with steel side plates\u003c\/strong\u003e - allows direct steel-to-wood and steel-to-engineered-wood connections, broadening application versatility for structural assemblies and modular construction\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePartially threaded shank\u003c\/strong\u003e - concentrates clamping force at the connection point to provide excellent pull-through and shear resistance where it matters most\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e160 mm (6-1\/4 in.) length with 4-3\/8 in. thread length\u003c\/strong\u003e - sized for thick timber members and deep steel plate connections common in CLT and mass timber construction\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhy This Product\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePurpose-built for mass timber and CLT construction\u003c\/strong\u003e - the SDHR Combo-Head screw is specifically designed for cross-laminated timber, mass timber, and engineered wood assemblies where standard fasteners fall short in connection strength and depth penetration\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEliminates predrilling in most applications\u003c\/strong\u003e - the Type-17 point self-drills into wood, saving significant labor time on projects where hundreds or thousands of structural fasteners must be driven\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual-drive head reduces tool dependency\u003c\/strong\u003e - the combination head works with both a T40 6-lobe bit and a 17 mm hex-head driver, so installation can continue regardless of which driver is available on the job site\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeets modern embrittlement standards\u003c\/strong\u003e - compliance with CSA O86:24 hydrogen embrittlement requirements means the SDHR is engineered to maintain its structural integrity in the field, not just in the lab\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 SDHR COMBO-HEAD Screw\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiameter (Nominal):\u003c\/strong\u003e 12 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength:\u003c\/strong\u003e 160 mm (6-1\/4 in.)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Length:\u003c\/strong\u003e 4-3\/8 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 0.669 in.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHead Type:\u003c\/strong\u003e Combination\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrive Type:\u003c\/strong\u003e T40 6-Lobe or Hex-Head\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePoint Type:\u003c\/strong\u003e Type-17 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\u003eSDHR12X160-R25:\u003c\/strong\u003e 25 Pk - includes T40, 6-lobe driver bit (replacement bit: BIT40T-134-R2)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSDHR12X160:\u003c\/strong\u003e 100 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\u003eEngineered Wood\u003c\/li\u003e\n\u003cli\u003eFactory-Built \/ Modular Construction\u003c\/li\u003e\n\u003cli\u003eSteel-to-Wood \/ Engineered Wood\u003c\/li\u003e\n\u003cli\u003eMass Timber \/ Cross-Laminated Timber\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eIncludes T40, 6-lobe driver bit (replacement bit: BIT40T-134-R2)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eInstall With\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eInstall using 6-lobe T40 or 17 mm hex-head driver bit\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/strong\u003e\n\u003c\/div\u003e","brand":"SIMPSON","offers":[{"title":"25 Pk","offer_id":67653521211622,"sku":"SDHR12X160-R25","price":112.78,"currency_code":"USD","in_stock":true},{"title":"100 Pk","offer_id":67653521244390,"sku":"SDHR12X160","price":300.44,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0398\/5188\/4705\/files\/SDHR12X160-R25_00707392033868_Product_Photo_01.png?v=1791498822","url":"https:\/\/factorydirectsupply.com\/products\/simpson-strong-drive-sdhr-combo-head-screw-12-mm-x-160-mm-black-e-coat","provider":"Factory Direct Supply","version":"1.0","type":"link"}