{"product_id":"simpson-strong-drive-sdhr-combo-head-screw-10-mm-x-100-mm-black-e-coat","title":"Simpson Strong-Drive SDHR COMBO-HEAD Screw - 10 mm x 100 mm, Black E-Coat","description":"\u003cdiv\u003e\n\u003cp\u003e\u003cstrong\u003eSimpson Strong-Drive SDHR COMBO-HEAD Screw - 10 mm x 100 mm, Black E-Coat\u003c\/strong\u003e by Simpson Strong-Tie is a heavy-duty structural fastener engineered for cross-laminated timber (CLT), mass timber construction, and general interior dry-service applications. The unique combination hex head accepts either a 15 mm hex-head driver bit or a T40 6-lobe driver bit, giving installers flexibility on the job site without sacrificing drive security. Built with a robust knurled shank, a Type-17 self-drilling point, and a black e-coat electrocoated finish, this screw is purpose-built to connect steel plate and angle connectors to wood with exceptional holding strength - no predrilling required in most applications.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eBlack e-coat electrocoating finish - provides a construction-durable, nonmetallic and friction-reducing coating for corrosion resistance in interior dry-service conditions, helping fasteners perform reliably over the long term\u003c\/li\u003e\n\u003cli\u003eOptimized hardness profile - helps mitigate field embrittlement issues and is compliant with CSA O86:24 hydrogen embrittlement requirements, reducing the risk of fastener failure in structural applications\u003c\/li\u003e\n\u003cli\u003eCombination head design (T40 6-lobe or 15 mm hex-head driver bit compatibility) - gives installers the flexibility to use the bit already on hand, saving time during structural assembly\u003c\/li\u003e\n\u003cli\u003eHeavy-duty shank with robust knurl - reduces installation torque so screws drive faster and with less strain on tools and operators\u003c\/li\u003e\n\u003cli\u003eType-17 point - ensures fast starts, lowers installation torque, and eliminates the need for predrilling in most applications, speeding up structural timber work\u003c\/li\u003e\n\u003cli\u003ePartially threaded design with 2 1\/8 in. thread length - concentrates clamping force where it is needed most, making this screw especially effective when connecting steel side plates to wood or engineered lumber\u003c\/li\u003e\n\u003cli\u003eHex head with deep T40, 6-lobe recess - delivers a secure, cam-out-resistant drive even under high torque, reducing stripped-head failures in the field\u003c\/li\u003e\n\u003cli\u003eHead diameter of 0.590 in. and shank diameter of 0.275 in. - dimensioned for structural-grade load transfer in mass timber and CLT connections\u003c\/li\u003e\n\u003cli\u003eDesigned for use with steel side plates - making it a go-to fastener for steel-to-wood and steel-to-engineered-wood connections in timber frame construction\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhy This Product\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eEngineered specifically for mass timber and CLT construction - the SDHR Combo-Head screw is one of the few structural hand-drive fasteners purpose-designed for cross-laminated timber and factory-built or modular wood construction, where connection strength and consistent installation torque are critical.\u003c\/li\u003e\n\u003cli\u003eDual drive compatibility saves time on complex job sites - the combination hex and T40 6-lobe head means crews are not forced to stop and swap bits, keeping installation moving efficiently whether using a hex or 6-lobe driver.\u003c\/li\u003e\n\u003cli\u003eSelf-drilling Type-17 point eliminates extra prep steps - in most applications there is no need for predrilling, which reduces labor time and the number of tools needed when fastening into engineered wood, CLT panels, or solid timber members.\u003c\/li\u003e\n\u003cli\u003eCSA O86:24 compliant hardness profile addresses a real field concern - the optimized hardness helps mitigate embrittlement issues that can compromise structural integrity over time, providing added confidence in long-term performance for dry-service interior applications.\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\u003eLength:\u003c\/strong\u003e 4 in. (100 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter:\u003c\/strong\u003e 0.275 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 2 1\/8 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\u003eSDHR10X100-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\u003eSDHR10X100:\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 15-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":67653521015014,"sku":"SDHR10X100-R25","price":57.2,"currency_code":"USD","in_stock":true},{"title":"100 Pk","offer_id":67653521047782,"sku":"SDHR10X100","price":149.55,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0398\/5188\/4705\/files\/SDHR10X100-R25_00707392018735_Product_Photo_01.jpg?v=1791498382","url":"https:\/\/factorydirectsupply.com\/products\/simpson-strong-drive-sdhr-combo-head-screw-10-mm-x-100-mm-black-e-coat","provider":"Factory Direct Supply","version":"1.0","type":"link"}