{"product_id":"value-collection-r63640446-carriage-bolt-5-16-18-18-8-ss","title":"Value Collection R63640446 Carriage Bolt 5\/16-18 18-8 Ss","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VALUE COLLECTION R63640446 is a 5\/16-18 carriage bolt with a 3\/4-inch length under the head, manufactured from 18-8 stainless steel with a bright uncoated finish. The square neck beneath the round domed head locks into a mating square hole or bites into wood to prevent rotation during installation, eliminating the need for a wrench on the bolt side. This fastener follows Unified National Coarse (UNC) thread standards and the inch system of measurement. It is suited for structural and mechanical assemblies where corrosion resistance is a priority. Trades including plumbing, electrical, HVAC, and general construction install this type of bolt in applications where a flush, clean head presentation is required.\u003c\/p\u003e\n\u003cp\u003eThis carriage bolt is used in light structural connections, equipment mounting, and wood-to-metal or metal-to-metal assemblies. The 18-8 stainless steel construction makes it appropriate for outdoor, wet, or corrosive environments where standard zinc-plated or plain steel hardware would degrade. Common install scenarios include strut channel assemblies, pool and spa equipment mounting, fence hardware, and similar trade applications that demand lasting corrosion resistance without a protective coating that could flake or wear.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e5\/16-18 UNC thread for broad compatibility with standard nuts and tapped fittings\u003c\/li\u003e\n  \u003cli\u003e3\/4-inch length under head suits thin-stock and light structural connections\u003c\/li\u003e\n  \u003cli\u003eSquare neck prevents bolt rotation during tightening without a secondary tool on the bolt\u003c\/li\u003e\n  \u003cli\u003e18-8 stainless steel provides strong corrosion resistance in wet and outdoor environments\u003c\/li\u003e\n  \u003cli\u003eBright uncoated finish — no coating to chip, flake, or contaminate the joint\u003c\/li\u003e\n  \u003cli\u003eInch measurement system, UNC thread standard\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a standard 5\/16-18 UNC carriage bolt suitable for use with any 5\/16-18 UNC hex nut, coupling nut, or threaded insert in inch-standard fastener applications.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInsert the bolt through a pre-drilled or punched hole sized to allow the square neck to seat flush, preventing rotation as the nut is torqued from the opposite side. Use a standard hex wrench or socket on the nut side only — no tool is needed or recommended on the domed head. Power down or de-energize any associated equipment before working in panel enclosures or electrical strut assemblies. Follow applicable codes for the trade and application, including NEC requirements when fastening within electrical installations.\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 (Unified National Coarse)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength Under Head\u003c\/strong\u003e: 0.75 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: 18-8\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinish\u003c\/strong\u003e: Bright \/ 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: R63640446\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51689844703538,"sku":"R63640446","price":1442.6,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/21a1f5a4ea08486d94c58c6933afedc0.jpg?v=1788264582","url":"https:\/\/voomisupply.com\/products\/value-collection-r63640446-carriage-bolt-5-16-18-18-8-ss","provider":"Voomi Supply","version":"1.0","type":"link"}