{"product_id":"value-collection-r63640244-carriage-bolt-5-16-18-2-1-2-in","title":"Value Collection R63640244 Carriage Bolt 5\/16-18 2-1\/2 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VALUE COLLECTION R63640244 is a 5\/16-18 UNC carriage bolt designed for secure fastening in structural and mechanical assemblies. The square neck under the domed head locks into wood or soft material to prevent rotation during tightening, eliminating the need for a wrench on the bolt side. Manufactured from Grade 18-8 stainless steel with an uncoated finish, this bolt resists corrosion in wet, outdoor, and mildly chemical-exposed environments. The 2.5-inch length under head suits medium-depth through-bolt applications. Installers across HVAC, plumbing, electrical, and general construction trades use this bolt where both corrosion resistance and a clean finished appearance are required.\u003c\/p\u003e\n\u003cp\u003eThis carriage bolt is suited for residential and light commercial fastening applications including equipment mounting, structural wood connections, racking systems, and pipe support assemblies. The 5\/16-18 thread size is a common standard in trade installations where UNC fasteners are specified. The uncoated Grade 18-8 stainless steel construction makes it appropriate for outdoor, coastal, or damp-environment installations where carbon steel fasteners would be prone to rust and premature failure.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e5\/16-18 UNC thread for compatibility with standard nuts and tapped components\u003c\/li\u003e\n  \u003cli\u003eSquare neck locks into substrate to prevent bolt rotation during installation\u003c\/li\u003e\n  \u003cli\u003eGrade 18-8 stainless steel construction provides corrosion resistance in wet and outdoor environments\u003c\/li\u003e\n  \u003cli\u003eUncoated finish with no plating to degrade or introduce galvanic incompatibility with stainless hardware\u003c\/li\u003e\n  \u003cli\u003e2.5-inch length under head accommodates medium-thickness material stacks\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a standard UNC carriage bolt for use with 5\/16-18 nuts and washers in wood, metal, and composite fastening applications requiring a stainless steel fastener.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eCarriage bolts are typically installed by tradespeople and general contractors using standard hand tools. Insert the bolt through a pre-drilled hole sized to allow the square neck to seat flush and prevent rotation, then secure with a compatible 5\/16-18 nut and washer on the opposite face. Do not use an impact driver directly on the domed head. Torque the nut to the value specified by the project engineer or applicable structural code — no torque value is specified for this fastener in the supplied data.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 5\/16-18\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: UNC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength Under Head\u003c\/strong\u003e: 2.5 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNeck Type\u003c\/strong\u003e: Square\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Stainless Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: Grade 18-8\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinish\u003c\/strong\u003e: Uncoated\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSystem of Measurement\u003c\/strong\u003e: Inch\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: VALUE COLLECTION\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: R63640244\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51695921234226,"sku":"R63640244","price":1318.3,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/36a37dcb8d72484aa92770a90cfac7f0.jpg?v=1788339402","url":"https:\/\/voomisupply.com\/products\/value-collection-r63640244-carriage-bolt-5-16-18-2-1-2-in","provider":"Voomi Supply","version":"1.0","type":"link"}