{"product_id":"imscrews-3-8-16-x-2-1-4-carriage-bolts-304-18-8-stainless-steel-round-head-square-neck-full-thread-structural-wood-bolts-for-deck-gazebo-5-pack","title":"IMSCREWS 3\/8-16 x 2-1\/4 Carriage Bolts, 304 18-8 Stainless Steel, Round Head \u0026 Square Neck, Full Thread Structural Wood Bolts for Deck \u0026 Gazebo, 5 Pack","description":"\u003cp\u003e\u003cstrong\u003eIMSCREWS 3\/8\"-16 x 2-1\/4\" Heavy-Duty 304 Stainless Steel Carriage Bolts (5 PCS)\u003c\/strong\u003e\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eSubstantial Support for Structural Timber Connections\u003c\/strong\u003e\u003cbr\u003eThe IMSCREWS 3\/8\" x 2-1\/4\" carriage bolt is designed for projects requiring reliable shear resistance and stable structural support. With a 2.25-inch length, these bolts are well-suited for high-load joints, such as joining two 1-inch thick boards or reinforcing deck-to-post connections. Built for framing, they offer the stability necessary for long-term use in gazebos, pergolas, 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 railings, play sets, and 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: 3\/8\"-16 Coarse; Length: 2-1\/4\" (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 3\/8\" 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 to the wood surface to avoid alignment issues.\u003cbr\u003e2. Pair with a heavy-duty flat washer on the nut side to distribute 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 carriage bolts provide exceptional rust and corrosion resistance. Well-suited for outdoor projects, ensuring your structures stay safe without unsightly rust stains on wood.\u003c\/li\u003e\n\u003cli\u003eADJUSTABLE FULL THREAD DESIGN The 2-1\/4 length combined with a full thread design offers maximum versatility. It allows for secure fastening across various material thicknesses, ensuring the nut can be tightened even on thinner board combinations.\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 self-locking mechanism allows for easy one-sided tightening during installation.\u003c\/li\u003e\n\u003cli\u003eIDEAL FOR HEAVY-DUTY PROJECTS With a robust 3\/8 large diameter, these bolts offer massive shear strength. Well-suited for securing deck posts, garden gazebos, playground equipment, and heavy furniture repair.\u003c\/li\u003e\n\u003cli\u003eNOTE ON ACCESSORIES This package includes 5 pieces of 3\/8-16 x 2-1\/4 carriage bolts only. Nuts and washers are NOT included. We recommend pre-drilling a 3\/8 hole and using manual tools for installation.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eASIN:\u003c\/strong\u003e B0F2F684M1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInternal SKU:\u003c\/strong\u003e IMS0846\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize:\u003c\/strong\u003e 3\/8\"-16 x 2-1\/4\"\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":57034023403686,"sku":"B0F2F684M1","price":9.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0271\/2784\/0903\/files\/619oV1ogmEL_5fde9ad7-1fd1-4025-90dc-7273e44f5a55.jpg?v=1787034889","url":"https:\/\/www.imscrews.com\/products\/imscrews-3-8-16-x-2-1-4-carriage-bolts-304-18-8-stainless-steel-round-head-square-neck-full-thread-structural-wood-bolts-for-deck-gazebo-5-pack","provider":"IMSCREWS","version":"1.0","type":"link"}