{"product_id":"value-collection-781634ps-carriage-bolt-1-2-13-12in-square-neck","title":"Value Collection 781634PS Carriage Bolt 1\/2-13 12in Square Neck","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe VALUE COLLECTION 781634PS is a 1\/2-13 carriage bolt with a 12-inch length under head, designed for structural fastening applications where a smooth, round head and square neck are required to prevent rotation during installation. Manufactured from 18-8 stainless steel with a bright, uncoated finish, this bolt resists corrosion in wet, outdoor, and chemically active environments. The UNC (Unified National Coarse) thread form provides reliable engagement across standard 1\/2-13 tapped holes and nuts. At 0.676 pounds per unit, this is a full-length heavy fastener suited for demanding structural assemblies. Tradespeople in construction, mechanical, and marine applications rely on this grade for long-service-life fastening without protective coating degradation.\u003c\/p\u003e\u003cp\u003eThis carriage bolt is used in wood-to-wood, wood-to-metal, and light structural metal connections where a flush, domed head is needed on the face side and a nut and washer are applied from the opposite side. The square neck beneath the head bites into wood or fits square-hole hardware to resist turning without requiring a wrench on the bolt head. Common install scenarios include dock and deck construction, equipment mounting, and framing connections in corrosive or high-moisture environments where carbon steel fasteners would be unsuitable.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e18-8 stainless steel construction provides corrosion resistance in wet and outdoor environments\u003c\/li\u003e\n\u003cli\u003e1\/2-13 UNC thread standard for compatibility with standard hex nuts and threaded hardware\u003c\/li\u003e\n\u003cli\u003e12-inch length under head accommodates thick structural assemblies\u003c\/li\u003e\n\u003cli\u003eSquare neck design resists bolt rotation during nut tightening without additional tooling on the bolt head\u003c\/li\u003e\n\u003cli\u003eBright, uncoated finish with no plating or coating to degrade or flake over time\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement or stock fastener for structural assemblies requiring 1\/2-13 UNC carriage bolts in 18-8 stainless steel with a 12-inch length under head.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is typically performed by carpenters, ironworkers, or general tradespeople using a standard wrench or socket on the nut side while the square neck seats into the material to hold the bolt stationary. Always pre-drill the correct clearance hole diameter to allow the square neck to seat flush without splitting the substrate. Torque should be applied to the nut only; never apply rotational force to the round head. Follow applicable building codes and fastener specifications for structural connections.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 1\/2-13\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: 12 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\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.676 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 31161603\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\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: 781634PS\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51698590843186,"sku":"781634PS","price":2678.74,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/c72ab1e70f2515e325ca85f8474550cc_1eba41e4-7a55-4a59-b7af-c9fb246357f0.jpg?v=1788365151","url":"https:\/\/voomisupply.com\/products\/value-collection-781634ps-carriage-bolt-1-2-13-12in-square-neck","provider":"Voomi Supply","version":"1.0","type":"link"}