{"product_id":"imscrews-1-2-13-x-4-1-2-carriage-bolts-304-18-8-stainless-steel-round-head-square-neck-full-thread-heavy-duty-structural-bolts-5-pack","title":"IMSCREWS 1\/2-13 x 4-1\/2 Carriage Bolts, 304 18-8 Stainless Steel, Round Head \u0026 Square Neck, Full Thread Heavy Duty Structural Bolts, 5 Pack","description":"\u003cp\u003e\u003cstrong\u003eIMSCREWS 1\/2\"-13 x 4-1\/2\" Heavy-Duty 304 Stainless Steel Carriage Bolts (5 PCS)\u003c\/strong\u003e\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eSubstantial Support for Deep Structural Connections\u003c\/strong\u003e\u003cbr\u003eThe IMSCREWS 1\/2\" x 4-1\/2\" carriage bolt is engineered for heavy-duty projects requiring extended reach and maximum structural support. With a robust 1\/2-inch diameter and a 4.5-inch length, these bolts are well-suited for high-load joints, such as joining triple-layered 2x lumber or through-bolting 4x4 posts for deck railings and beams. Built for heavy framing, they offer the stability necessary for long-term use in docks, retaining walls, and industrial garden structures.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eHigh Durability and Safety-Focused Design\u003c\/strong\u003e\u003cbr\u003eForged from 18-8 (304) stainless steel, these fasteners are highly resistant to corrosion in outdoor environments and are compatible with pressure-treated lumber. 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 high-traffic areas like benches, playgrounds, and railings. The integrated square neck prevents rotation, 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: 1\/2\"-13 Coarse; Length: 4-1\/2\" (Under Head)\u003cbr\u003e- Material: 304 (18-8) Stainless Steel; Full Thread\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eFAQ:\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eQ: Drill bit size?\u003c\/strong\u003e A: A 1\/2\" bit provides a \u003cstrong\u003esnug\u003c\/strong\u003e, structural fit.\u003cbr\u003e\u003cstrong\u003eQ: Coastal safe?\u003c\/strong\u003e A: Yes, 304 SS offers high resistance to salt air corrosion.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003ePro-Tips:\u003c\/strong\u003e\u003cbr\u003e1. Ensure the pilot hole is perfectly perpendicular for 4.5\" bolts to avoid alignment issues in thick timber.\u003cbr\u003e2. Pair with a heavy-duty flat washer 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\u003ePREMIUM 304 STAINLESS STEEL Crafted from high-quality 18-8 (304) stainless steel, these bolts offer superior rust and corrosion resistance. Well-suited for long-term outdoor, garden, and marine structural applications.\u003c\/li\u003e\n\u003cli\u003eINDUSTRIAL STRENGTH 1\/2 DIAMETER With a robust 1\/2 inch large diameter, these bolts provide massive shear strength and loading capacity. Engineered for structural projects where safety and stability are paramount.\u003c\/li\u003e\n\u003cli\u003eVERSATILE FULL THREAD DESIGN The 4-1\/2 length features a full thread design, providing maximum flexibility for various material thicknesses. It ensures a secure, tight fit whether joining thick beams or layered timber.\u003c\/li\u003e\n\u003cli\u003eSELF-LOCKING SQUARE NECK Features a smooth rounded mushroom head and a precision square neck that bites into wood to prevent spinning. This allows for easy one-sided tightening during installation.\u003c\/li\u003e\n\u003cli\u003eSPECIFICATIONS \u0026amp; NOTE Package includes 5 pieces of 1\/2-13 x 4-1\/2 carriage bolts only. Nuts and washers are NOT included. We recommend pre-drilling a 1\/2 hole for a professional fit.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eASIN:\u003c\/strong\u003e B0F2F6WCD7\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInternal SKU:\u003c\/strong\u003e IMS0908\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize:\u003c\/strong\u003e 1\/2\"-13 x 4-1\/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 5\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"IMSCREWS","offers":[{"title":"Default Title","offer_id":57034066919590,"sku":"B0F2F6WCD7","price":12.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0271\/2784\/0903\/files\/51ZaVl7AlSL_728d18b3-2c57-429d-9561-df14a060695e.jpg?v=1787034961","url":"https:\/\/www.imscrews.com\/ru\/products\/imscrews-1-2-13-x-4-1-2-carriage-bolts-304-18-8-stainless-steel-round-head-square-neck-full-thread-heavy-duty-structural-bolts-5-pack","provider":"IMSCREWS","version":"1.0","type":"link"}