{"product_id":"simpson-sdhr31400-r25","title":"Simpson Strong-Tie SDHR31400-R25 Strong-Drive® SDHR COMBO-HEAD Screw — 0.315 in. x 4 in., Blue Zinc (25-Qty)","description":"\u003ch3\u003eSimpson Strong-Tie SDHR31400-R25 Strong-Drive® SDHR COMBO-HEAD Screw — 0.315 in. x 4 in., Blue Zinc (25-Qty)\u003c\/h3\u003e\u003cp\u003eThe Strong-Drive® SDHR Combo-Head screw is a structural fastener designed for cross-laminated timber construction, mass timber construction and general interior applications. These partially-threaded, sturdy 0.390 in. and 0.470 in. outer-diameter structural fasteners are designed to pull structural members together while providing excellent connection strength. The unique “combination” head allows for effortless driving using either a hex driver bit or T40 6-lobe driver bit. The SDHR Combo-Head has an interior-grade, blue-zinc coating, a robust knurled shaft and Type-17 point for fast starts and low-torque driving.\u003c\/p\u003e\u003cp\u003eThis Simpson product is designed for construction, connector, fastening, anchoring, and structural applications where dependable performance, durability, and jobsite-ready installation matter.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eDesigned for use with steel side plates\u003c\/li\u003e\n\u003cli\u003eCan be driven by either a hex-head or 6-lobe driver bit\u003c\/li\u003e\n\u003cli\u003eHeavy-duty, partially-threaded shaft with knurl provides strength, with superb pull-out resistance\u003c\/li\u003e\n\u003cli\u003eType-17 point ensures fast starts, reduces installation torque and eliminates the need for predrilling in most applications\u003c\/li\u003e\n\u003cli\u003eDeep T40, 6-lobe recess for a secure drive\u003c\/li\u003e\n\u003cli\u003eInterior grade blue-zinc coating\u003c\/li\u003e\n\u003cli\u003eShank diameter: 0.315 in. (8.1 mm)\u003c\/li\u003e\n\u003cli\u003eLength: 4 in. (100 mm)\u003c\/li\u003e\n\u003cli\u003eQuantity: 25 per package\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eApplication\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eSteel-to-Wood\/Engineered Wood\u003c\/li\u003e\n\u003cli\u003eEngineered Wood\u003c\/li\u003e\n\u003cli\u003eFactory-Built\/Modular Construction\u003c\/li\u003e\n\u003cli\u003eMass Timber \/ Cross-Laminated Timber\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eERP Part Number:\u003c\/strong\u003e SDHR31400-R25\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 707392012160\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGTIN:\u003c\/strong\u003e 707392012160\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFeature 01:\u003c\/strong\u003e Designed for use with steel side plates\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFeature 02:\u003c\/strong\u003e Can be driven by either a hex-head or 6-lobe driver bit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFeature 03:\u003c\/strong\u003e Heavy-duty, partially-threaded shaft with knurl provides strength, with superb pull-out resistance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFeature 04:\u003c\/strong\u003e Type-17 point ensures fast starts, reduces installation torque and eliminates the need for predrilling in most applications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFeature 05:\u003c\/strong\u003e Deep T40, 6-lobe recess for a secure drive\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFeature 06:\u003c\/strong\u003e Interior grade blue-zinc coating\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFeature 07:\u003c\/strong\u003e Shank diameter: 0.315 in. (8.1 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFeature 08:\u003c\/strong\u003e Length: 4 in. (100 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFeature 09:\u003c\/strong\u003e Quantity: 25 per package\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall With:\u003c\/strong\u003e Install using 6-lobe T40 or 17-mm hex-head driver bit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplications List:\u003c\/strong\u003e Steel-to-Wood\/Engineered Wood\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplications List.1:\u003c\/strong\u003e Engineered Wood\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplications List.2:\u003c\/strong\u003e Factory-Built\/Modular Construction\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplications List.3:\u003c\/strong\u003e Mass Timber \/ Cross-Laminated Timber\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAssembled Depth - Imperial:\u003c\/strong\u003e 0.669\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAssembled Depth UOM - Imperial:\u003c\/strong\u003e in.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAssembled Height - Imperial:\u003c\/strong\u003e 4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAssembled Height UOM - Imperial:\u003c\/strong\u003e in.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAssembled Width - Imperial:\u003c\/strong\u003e 0.669\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAssembled Width UOM - Imperial:\u003c\/strong\u003e in.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBase Product ID:\u003c\/strong\u003e SDHR_Screw\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBase Product Name:\u003c\/strong\u003e Strong-Drive® SDHR COMBO-HEAD Screw\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand Name:\u003c\/strong\u003e Simpson Strong-Tie®\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory Tree (Computed):\u003c\/strong\u003e Fasteners \u0026gt; Interior Wood Screws \u0026gt; Hand-Drive Screw\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating:\u003c\/strong\u003e Blue-Zinc Coated\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCountry of Origin:\u003c\/strong\u003e TW\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCustomer Unit:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDisplay Unit\/Measure:\u003c\/strong\u003e EA\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\u003eGUID:\u003c\/strong\u003e 326307301664485004080182532067487668856\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHead Diameter (in.):\u003c\/strong\u003e 0.669\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHead Type:\u003c\/strong\u003e Combination\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength (in.):\u003c\/strong\u003e 4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLogo Image:\u003c\/strong\u003e https:\/\/images.salsify.com\/image\/upload\/s--Lkh4Jm6c--\/vkrqlmpfxgflsa4yytuq.png\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeasurement Unit Text:\u003c\/strong\u003e each\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMFG Name:\u003c\/strong\u003e Simpson Strong-Tie®\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber Category Description:\u003c\/strong\u003e UPC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackaging Quantity:\u003c\/strong\u003e 25\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackaging Type:\u003c\/strong\u003e Mini-Bulk\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePoint Type:\u003c\/strong\u003e Type-17 Point\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Class:\u003c\/strong\u003e Hand-Drive Screw\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Includes:\u003c\/strong\u003e Includes T40, 6-lobe driver bit (replacement bit: BIT40T-134-R2)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProp 65 - Cancer:\u003c\/strong\u003e Wood Dust\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProp 65 - Long Text:\u003c\/strong\u003e WARNING! This product can expose you to chemicals including wood dust which is known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProp 65 - Short Text:\u003c\/strong\u003e WARNING! 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