{"product_id":"1-2-20-x-1-1-2-fine-thread-grade-2-zinc-plated-carriage-bolt","title":"1\/2in-20 x 1-1\/2in Fine Thread Grade 2 Zinc-Plated Carriage Bolt","description":"\u003cp data-path-to-node=\"1\"\u003e\u003cb data-path-to-node=\"1\" data-index-in-node=\"0\"\u003eSecure wood-to-metal and metal-to-metal assemblies with smooth, low-profile safety fastening.\u003c\/b\u003e Built for smooth-surface applications where protruding bolt heads pose a snag hazard or safety risk, this \u003cb data-path-to-node=\"1\" data-index-in-node=\"200\"\u003e1\/2in-20 x 1-1\/2in Grade 2 carriage bolt\u003c\/b\u003e features a rounded domed head and a precision square neck. The square neck bites firmly into pre-punched square metal holes or wood timber, locking the bolt in place so you can tighten the nut from one side without requiring a second wrench.\u003c\/p\u003e\n\u003ch3 data-path-to-node=\"3\"\u003eKey Features\u003c\/h3\u003e\n\u003cul data-path-to-node=\"4\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"4,0,0\"\u003e\u003cb data-path-to-node=\"4,0,0\" data-index-in-node=\"0\"\u003e1\/2in-20 SAE Fine Thread:\u003c\/b\u003e Features fine 20 threads-per-inch pitch for higher clamping force, precise tensioning, and superior resistance to loosening from vibration.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"4,1,0\"\u003e\u003cb data-path-to-node=\"4,1,0\" data-index-in-node=\"0\"\u003e1-1\/2in Overall Length:\u003c\/b\u003e Ideal length for securing medium-thickness structural brackets, trailer decking, gate hinges, and machinery frames.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"4,2,0\"\u003e\u003cb data-path-to-node=\"4,2,0\" data-index-in-node=\"0\"\u003eSquare Neck Anti-Rotation:\u003c\/b\u003e Square shank directly under the smooth head seats into square holes to prevent the bolt from spinning during installation or removal.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"4,3,0\"\u003e\u003cb data-path-to-node=\"4,3,0\" data-index-in-node=\"0\"\u003eCorrosion-Resistant Zinc Plating:\u003c\/b\u003e Electro-zinc finish provides reliable protection against rust, moisture, and mild outdoor exposure.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"4,4,0\"\u003e\u003cb data-path-to-node=\"4,4,0\" data-index-in-node=\"0\"\u003eGrade 2 Carbon Steel:\u003c\/b\u003e Standard commercial-grade steel construction offering dependable tensile strength for light-to-medium duty structural applications.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"4,5,0\"\u003e\u003cb data-path-to-node=\"4,5,0\" data-index-in-node=\"0\"\u003eSmooth Round Head Profile:\u003c\/b\u003e Dome head design leaves no sharp edges exposed, preventing snagging on cargo, clothing, or equipment.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-path-to-node=\"6\"\u003eProduct Specifications\u003c\/h3\u003e\n\u003cul data-path-to-node=\"7\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"7,0,0\"\u003e\u003cb data-path-to-node=\"7,0,0\" data-index-in-node=\"0\"\u003eProduct Type:\u003c\/b\u003e Carriage Bolt \/ Round Head Square Neck Bolt\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"7,1,0\"\u003e\u003cb data-path-to-node=\"7,1,0\" data-index-in-node=\"0\"\u003eThread Size:\u003c\/b\u003e 1\/2in-20 Fine Thread (UNF)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"7,2,0\"\u003e\u003cb data-path-to-node=\"7,2,0\" data-index-in-node=\"0\"\u003eLength:\u003c\/b\u003e 1-1\/2in (Measured from under the head to tip)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"7,3,0\"\u003e\u003cb data-path-to-node=\"7,3,0\" data-index-in-node=\"0\"\u003eMaterial Grade:\u003c\/b\u003e SAE Grade 2 Low\/Medium Carbon Steel\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"7,4,0\"\u003e\u003cb data-path-to-node=\"7,4,0\" data-index-in-node=\"0\"\u003eFinish:\u003c\/b\u003e Zinc-Plated\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"7,5,0\"\u003e\u003cb data-path-to-node=\"7,5,0\" data-index-in-node=\"0\"\u003eHead Style:\u003c\/b\u003e Round Smooth Dome\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"7,6,0\"\u003e\u003cb data-path-to-node=\"7,6,0\" data-index-in-node=\"0\"\u003eNeck Style:\u003c\/b\u003e Square Anti-Spin Neck\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"7,7,0\"\u003e\u003cb data-path-to-node=\"7,7,0\" data-index-in-node=\"0\"\u003eRecommended Applications:\u003c\/b\u003e Trailer Decking, Structural Framing, Farm Equipment, Fence Gates, Commercial Machinery, and Wood-to-Metal Connections\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"YAGI Pipe and Steel \/ McKee's Discount Steel","offers":[{"title":"Default Title","offer_id":67729634918477,"sku":"YG.10192026.01","price":0.75,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0693\/4793\/4285\/files\/Screenshot2026-10-19123638.png?v=1792431468","url":"https:\/\/yagipipeandsteel.com\/products\/1-2-20-x-1-1-2-fine-thread-grade-2-zinc-plated-carriage-bolt","provider":"YAGI Pipe and Steel \/ McKee's Discount Steel","version":"1.0","type":"link"}