{"product_id":"imscrews-3-8-16-x-1-1-2-heavy-duty-carriage-bolts-304-stainless-steel-18-8-full-thread-structural-fasteners-for-decks-docks-heavy-hardware-20-pcs","title":"IMSCREWS 3\/8-16 x 1-1\/2 Heavy-Duty Carriage Bolts, 304 Stainless Steel (18-8), Full Thread Structural Fasteners for Decks, Docks \u0026 Heavy Hardware, 20 PCS","description":"\u003cp\u003e\u003cstrong\u003eIMSCREWS 3\/8\"-16 x 1-1\/2\" Heavy-Duty 304 Stainless Steel Carriage Bolts (20 PCS)\u003c\/strong\u003e\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eSubstantial Strength for Heavy Structural and Marine Connections\u003c\/strong\u003e\u003cbr\u003eThe IMSCREWS 3\/8\" x 1-1\/2\" carriage bolt is engineered for heavy-duty structural projects that demand maximum load-bearing capacity and a professional finish. With a robust 3\/8-inch diameter and a precision 1.5-inch length, these bolts are the \u003cstrong\u003eideal\u003c\/strong\u003e choice for securing industrial brackets, dock hardware, and heavy timber-to-metal connections. The full thread design provides maximum versatility for a \u003cstrong\u003esnug\u003c\/strong\u003e fit, ensuring structural integrity in both residential construction and demanding industrial or marine applications.\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 offer superior resistance to rust and corrosion in coastal or humid environments. The smooth round head creates a \u003cstrong\u003eclean\u003c\/strong\u003e, tamper-resistant look that reduces snagging hazards, making them a safe choice for high-traffic areas like boardwalks, playground equipment, and residential decks. The integrated square neck prevents the bolt from spinning during installation, allowing for easy, one-sided fastening 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: 1-1\/2\" (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 hex nuts on the nut side to distribute heavy structural loads and protect material surfaces.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eIndustrial 3\/8 Diameter: Engineered for maximum structural integrity, the 3\/8-inch shank offers superior shear resistance for high-load joints in decks, piers, and heavy timber framing.\u003c\/li\u003e\n\u003cli\u003eThe 1.5-Inch Standard: The Designed for length for through-bolting two layers of standard 3\/4 boards or securing heavy metal brackets to 2x lumber with a clean, professional finish.\u003c\/li\u003e\n\u003cli\u003eMarine-Grade 304 Stainless: Forged from premium 18-8 (304) stainless steel, providing top-tier defense against rust in saltwater air, humid gardens, and with treated lumber.\u003c\/li\u003e\n\u003cli\u003eSnag-Free Safety Head: The smooth, rounded dome head eliminates sharp edges and exposed drive slots¡ªWell-suited for child-friendly play sets, public benches, and high-traffic docks.\u003c\/li\u003e\n\u003cli\u003eSelf-Locking Anti-Spin Neck: The precision square shoulder bites deep into wood fibers, locking the bolt so you can easily tighten the nut with one wrench from the opposite side.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eASIN:\u003c\/strong\u003e B0F2F9RRG1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInternal SKU:\u003c\/strong\u003e IMS0839\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize:\u003c\/strong\u003e 3\/8\"-16 x 1-1\/2\"\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 20\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"IMSCREWS","offers":[{"title":"Default Title","offer_id":57034023174310,"sku":"B0F2F9RRG1","price":12.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0271\/2784\/0903\/files\/619oV1ogmEL_5311b311-540e-440c-9b2a-4f79e089ea3f.jpg?v=1787034880","url":"https:\/\/www.imscrews.com\/products\/imscrews-3-8-16-x-1-1-2-heavy-duty-carriage-bolts-304-stainless-steel-18-8-full-thread-structural-fasteners-for-decks-docks-heavy-hardware-20-pcs","provider":"IMSCREWS","version":"1.0","type":"link"}