{"product_id":"57778-screw-caliburn-25pk-19-64x3-1-2-25pk-grk57778","title":"57778  SCREW CALIBURN 25PK 19\/64X3-1\/2 (25)pk","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eThe GRK Fasteners Caliburn Concrete Screw (\u003cspan itemprop=\"model\"\u003e57778\u003c\/span\u003e) is designed for anchoring and fastening applications in concrete, masonry, and similar substrates. Engineered by ITW Brands, this 25-pack of 19\/64 in. x 3-1\/2 in. screws delivers professional-grade holding performance in demanding construction environments where traditional anchors were previously required.\u003c\/p\u003e\n\n\u003ctable\u003e\n  \u003ctr\u003e\n    \u003cth\u003eMPN\u003c\/th\u003e\n    \u003ctd\u003e57778\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\u003eSize\u003c\/th\u003e\n    \u003ctd\u003e0.29 in. Diameter x 3.5 in. Length\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003cth\u003ePack Quantity\u003c\/th\u003e\n    \u003ctd\u003e25 screws\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003cth\u003ePackage Weight\u003c\/th\u003e\n    \u003ctd\u003e4.82 lb\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003cth\u003eCoating\u003c\/th\u003e\n    \u003ctd\u003eClimatek\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003cth\u003eCertifications\u003c\/th\u003e\n    \u003ctd\u003eESR-3251 (concrete anchoring); AC257 code approved (treated lumber)\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003cth\u003eHead Style\u003c\/th\u003e\n    \u003ctd\u003eCaliburn XL Washer Head\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003cth\u003eColor\u003c\/th\u003e\n    \u003ctd\u003eYellow\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 Aggressive heavy-duty threads lock mechanically into concrete, enabling secure engagement with the substrate for high draw and pullout strength.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSix-point contact drive system:\u003c\/strong\u003e Zero-strip design provides full torque transfer to the fastener head, reducing cam-out and driver bit wear during installation.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRe-enterable pilot hole compatibility:\u003c\/strong\u003e Screws can be removed and reinserted into the same pilot hole multiple times without fastener breakage or thread degradation, reducing material waste on adjustable or temporary assemblies.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eClimatek corrosion-resistant coating:\u003c\/strong\u003e Provides high corrosion resistance and is AC257 code approved for use in treated lumber, expanding application suitability in both interior and exterior environments.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eESR-3251 certified:\u003c\/strong\u003e Independently evaluated and approved for use in concrete anchoring applications, supporting use on code-compliant and engineered projects.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCaliburn XL washer head design:\u003c\/strong\u003e Engineered for superior holding power, distributing clamping load over a larger bearing surface compared to standard head profiles.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAnchor-replacement capability:\u003c\/strong\u003e Uncompromised draw and pullout strength allows substitution for traditional concrete anchors in qualifying applications, streamlining fastener selection on job sites.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eDirect fastening into concrete and masonry substrates\u003c\/li\u003e\n  \u003cli\u003eAnchoring structural and non-structural components to concrete where ESR-3251 compliance is required\u003c\/li\u003e\n  \u003cli\u003eFastening into treated lumber in code-regulated applications (AC257 approved)\u003c\/li\u003e\n  \u003cli\u003eInstallations requiring removable and reinstallable fasteners without pilot hole damage\u003c\/li\u003e\n  \u003cli\u003eApplications previously requiring mechanical concrete anchors\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Gap Power","offers":[{"title":"Default Title","offer_id":46917261230233,"sku":"GRK57778","price":52.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0639\/8138\/7929\/files\/38687956-1.jpg?v=1775355391","url":"https:\/\/gappower.com\/products\/57778-screw-caliburn-25pk-19-64x3-1-2-25pk-grk57778","provider":"Gap Power","version":"1.0","type":"link"}