{"product_id":"55778-caliburn-concrete-screw-400pk-19-64-x-3-1-2-grk55778","title":"55778 Caliburn Concrete Screw 400pk 19\/64\" x 3-1\/2\"","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eThe GRK Caliburn Concrete Screw 400-Pack (\u003cspan itemprop=\"model\"\u003e55778\u003c\/span\u003e) is designed for hardware and tool applications requiring reliable fastening into concrete and similar substrates. Manufactured by GRK Fasteners, this bulk pack provides 400 professionally engineered concrete screws in a 19\/64\" x 3-1\/2\" dimension, suited for high-volume job-site use.\u003c\/p\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n    \u003cth\u003eMPN\u003c\/th\u003e\n    \u003ctd\u003e55778\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003cth\u003eBrand\u003c\/th\u003e\n    \u003ctd\u003eGRK Fasteners\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003cth\u003eScrew Diameter\u003c\/th\u003e\n    \u003ctd\u003e19\/64\"\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003cth\u003eScrew Length\u003c\/th\u003e\n    \u003ctd\u003e3-1\/2\"\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003cth\u003ePack Quantity\u003c\/th\u003e\n    \u003ctd\u003e400 pieces\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003cth\u003ePackage Weight\u003c\/th\u003e\n    \u003ctd\u003e19.99 lbs\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003cth\u003eCategory\u003c\/th\u003e\n    \u003ctd\u003eHardware \u0026gt; Tools\u003c\/td\u003e\n  \u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eTechnical Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePatented thread design:\u003c\/strong\u003e Engineered specifically for driving into concrete and similar materials, reducing drive resistance and installation effort.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e19\/64\" diameter x 3-1\/2\" length:\u003c\/strong\u003e Provides a defined fastener profile suited to standard concrete anchoring depths and load requirements.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e400-piece bulk pack:\u003c\/strong\u003e Minimizes resupply interruptions on high-volume or multi-phase job sites.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eProfessionally engineered construction:\u003c\/strong\u003e Designed by GRK Fasteners to meet the demands of trade and professional installation environments.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eFastening into poured concrete, concrete block, and similar masonry substrates.\u003c\/li\u003e\n  \u003cli\u003eHigh-volume commercial and residential construction projects requiring consistent, reliable concrete anchoring.\u003c\/li\u003e\n  \u003cli\u003eProfessional trade applications where bulk fastener availability and driving ease are critical to workflow efficiency.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Gap Power","offers":[{"title":"Default Title","offer_id":46917255299225,"sku":"GRK55778","price":631.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0639\/8138\/7929\/files\/38687453-1.jpg?v=1775355349","url":"https:\/\/gappower.com\/products\/55778-caliburn-concrete-screw-400pk-19-64-x-3-1-2-grk55778","provider":"Gap Power","version":"1.0","type":"link"}