{"product_id":"10221-screw-structural-5-16x3-1-8in-500ct-grk10221","title":"10221  SCREW STRUCTURAL 5\/16X3-1\/8IN 500ct","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eThe GRK Fasteners 10221 Structural Screw (\u003cspan itemprop=\"model\"\u003eGRK10217\u003c\/span\u003e) is designed for structural decking, framing, ledger board, LVL, multi-ply, and interior\/exterior remodeling applications. Sold in a 500-count box, this 5\/16 in. x 3-1\/8 in. structural screw delivers a code-compliant fastening solution for demanding wood construction assemblies.\u003c\/p\u003e\n\n\u003ctable\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n      \u003cth\u003eSpecification\u003c\/th\u003e\n      \u003cth\u003eValue\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003cth\u003eMPN\u003c\/th\u003e\n      \u003ctd\u003eGRK10217\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cth\u003eBrand\u003c\/th\u003e\n      \u003ctd\u003eGRK Fasteners \/ ITW Brands\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cth\u003eScrew Size (Diameter)\u003c\/th\u003e\n      \u003ctd\u003e5\/16 in.\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cth\u003eFastener Length\u003c\/th\u003e\n      \u003ctd\u003e3-1\/8 in. (nominal); 2-1\/2 in. (per manufacturer description)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cth\u003eHead Type\u003c\/th\u003e\n      \u003ctd\u003eRound\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cth\u003eHead Height\u003c\/th\u003e\n      \u003ctd\u003e0.177 in.\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cth\u003eDrive Type\u003c\/th\u003e\n      \u003ctd\u003eStar (T30)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cth\u003eMaterial\u003c\/th\u003e\n      \u003ctd\u003eSteel\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cth\u003eFinish\u003c\/th\u003e\n      \u003ctd\u003eClimatek™\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cth\u003eCompatible Substrate\u003c\/th\u003e\n      \u003ctd\u003eWood\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cth\u003eSystem of Measurement\u003c\/th\u003e\n      \u003ctd\u003eInch\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cth\u003ePackage Quantity\u003c\/th\u003e\n      \u003ctd\u003e500 count\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cth\u003ePackage Weight\u003c\/th\u003e\n      \u003ctd\u003e4.89 lb\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cth\u003eDimensional Standards \/ Certifications\u003c\/th\u003e\n      \u003ctd\u003eESR-2442, ICC-ES AC257\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eTechnical Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eClimatek™ Corrosion-Resistant Finish:\u003c\/strong\u003e Provides a proprietary protective coating on the steel shank, extending service life in exterior and exposed environments.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUnique Thread Design with W-Cut Technology:\u003c\/strong\u003e The W-Cut thread geometry reduces friction during installation, enabling faster penetration into wood substrates and lowering required drive torque.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eT30 Star Drive:\u003c\/strong\u003e The T30 star drive recess maximizes bit engagement and reduces cam-out, supporting consistent installation under high-torque conditions.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRound Head Profile (0.177 in. Height):\u003c\/strong\u003e The low-profile round head seats securely against the work surface, providing a clean bearing surface suitable for structural connections.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eESR-2442 \u0026amp; ICC-ES AC257 Compliance:\u003c\/strong\u003e Listed under recognized engineering standards, supporting use in permitted structural applications where code-compliant fasteners are required.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e500-Count Packaging:\u003c\/strong\u003e Bulk quantity format reduces restocking interruptions on large-scale framing and decking projects.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eStructural decking installations\u003c\/li\u003e\n  \u003cli\u003eWood framing assemblies\u003c\/li\u003e\n  \u003cli\u003eLedger board connections\u003c\/li\u003e\n  \u003cli\u003eLVL (Laminated Veneer Lumber) fastening\u003c\/li\u003e\n  \u003cli\u003eMulti-ply wood member construction\u003c\/li\u003e\n  \u003cli\u003eInterior and exterior remodeling projects requiring structural fasteners\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Gap Power","offers":[{"title":"Default Title","offer_id":46917227315353,"sku":"GRK10221","price":251.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0639\/8138\/7929\/files\/38715078-1.jpg?v=1775337698","url":"https:\/\/gappower.com\/products\/10221-screw-structural-5-16x3-1-8in-500ct-grk10221","provider":"Gap Power","version":"1.0","type":"link"}