{"product_id":"imscrews-3-8-16-x-5-heavy-duty-carriage-bolts-304-stainless-steel-18-8-full-thread-structural-coach-bolts-for-4x4-6x6-posts-2-pcs","title":"IMSCREWS 3\/8-16 x 5 Heavy-Duty Carriage Bolts, 304 Stainless Steel (18-8), Full Thread Structural Coach Bolts for 4x4 \u0026 6x6 Posts, 2 PCS","description":"\u003cp\u003e\u003cstrong\u003eIMSCREWS 3\/8\"-16 x 5\" Extra-Long 304 Stainless Steel Carriage Bolts (2 PCS)\u003c\/strong\u003e\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eSubstantial Strength for Deep Structural Timber Connections\u003c\/strong\u003e\u003cbr\u003eThe IMSCREWS 3\/8\" x 5\" carriage bolt is engineered for heavy-duty structural projects requiring maximum shear resistance and deep penetration. With a robust 3\/8-inch diameter and an extended 5-inch length, these bolts are well-suited for high-load joints where stability is critical, such as through-bolting multi-layered dimensional lumber or securing heavy-duty brackets to thick beams. Built for durability, they offer the stability necessary for long-term use in outdoor structures, garden gazebos, and industrial woodworking projects.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eHigh Durability and Safety-Focused Design\u003c\/strong\u003e\u003cbr\u003eForged from premium 18-8 (304) stainless steel, these fasteners are highly resistant to rust and corrosion in coastal or humid environments. The smooth round head offers a \u003cstrong\u003eclean\u003c\/strong\u003e appearance that reduces snagging hazards, making them an \u003cstrong\u003eideal\u003c\/strong\u003e choice for visible railings, play sets, and heavy-duty benches. The integrated square neck prevents the bolt from spinning, allowing for easy, one-sided installation with a single wrench from the nut side.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003cbr\u003e- Thread Size: 3\/8\"-16 Coarse (UNC); Length: 5\" (Measured from Under Head)\u003cbr\u003e- Material: 304 (18-8) Stainless Steel; Full Thread\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003ePro-Tips:\u003c\/strong\u003e\u003cbr\u003e1. Use a 3\/8\" drill bit to ensure a \u003cstrong\u003esnug\u003c\/strong\u003e, structural fit for the square neck.\u003cbr\u003e2. Pair with stainless steel flat washers and nuts on the nut side to distribute structural load and protect wood fibers.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eStructural Grade Strength: The robust 3\/8-inch diameter provides superior shear resistance and clamping force, making these bolts ideal for critical load-bearing joints in heavy timber framing.\u003c\/li\u003e\n\u003cli\u003eFull 5-Inch Reach: Engineered for through-bolting thick structural posts and multi-layer beams, this extended length ensures a rock-solid connection where standard bolts fall short.\u003c\/li\u003e\n\u003cli\u003eMarine-Grade Corrosion Defense: Forged from 18-8 (304) stainless steel, these fasteners are immune to rust in coastal air and highly compatible with corrosive ACQ pressure-treated lumber.\u003c\/li\u003e\n\u003cli\u003eSelf-Locking Anti-Spin Neck: The precision square neck bites deep into wood fibers, preventing the bolt from rotating while you apply high torque to the nut¡ªideal for one-sided installation.\u003c\/li\u003e\n\u003cli\u003eSafe, Snag-Free Aesthetic: The smooth, domed round head eliminates sharp edges and exposed drive slots, providing a clean professional look that is safe for playgrounds, docks, and furniture.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eASIN:\u003c\/strong\u003e B0F2F6HN4M\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInternal SKU:\u003c\/strong\u003e IMS0867\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize:\u003c\/strong\u003e 3\/8\"-16 x 5\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Stainless Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Stainless Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHead Style:\u003c\/strong\u003e Round\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Quantity:\u003c\/strong\u003e 2\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"IMSCREWS","offers":[{"title":"Default Title","offer_id":57034025697446,"sku":"B0F2F6HN4M","price":7.69,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0271\/2784\/0903\/files\/51ZaVl7AlSL_236140fe-cf7e-4cab-a4d8-33cbd45dc217.jpg?v=1787034912","url":"https:\/\/www.imscrews.com\/products\/imscrews-3-8-16-x-5-heavy-duty-carriage-bolts-304-stainless-steel-18-8-full-thread-structural-coach-bolts-for-4x4-6x6-posts-2-pcs","provider":"IMSCREWS","version":"1.0","type":"link"}