{"product_id":"20-sets-5-16-18-x-3-4-black-carriage-bolts-screws-and-hex-nuts-flat-washers-304-stainless-steel-18-8-round-head-square-neck-full-thread-coverage-size-5-16-18-x-3-4","title":"20 Sets 5\/16-18 x 3\/4\" Black Carriage Bolts Screws and Hex Nuts \u0026 Flat Washers, 304 Stainless Steel 18-8, Round Head Square Neck, Full Thread Coverage - size: 5\/16-18 x 3\/4\"","description":"\u003ch3\u003eAbout this item\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003ePackage Includes: 20 Pcs Carriage Bolts (5\/16-18 x 3\/4\") + 20 Pcs Hex Nuts (5\/16\"-18)+ 20 Pcs 5\/16\" Inside Diameter Flat Washers\u003c\/li\u003e\n\u003cli\u003eThread Size: 5\/16-18; Thread Pitch: 18 TPI; Thread Type: Coarse Thread\u003c\/li\u003e\n\u003cli\u003eMaterial: 304 Stainless Steel (A2-70) with durable black coating; Provides enhanced strength and superior corrosion resistance compared to standard stainless steel or zinc-plated fasteners; Features smooth, burr-free surfaces with scratch-resistant protection during handling and installation; Maintains a uniform industrial-grade black finish for professional applications\u003c\/li\u003e\n\u003cli\u003eBolt head diameter: 0.71 inch (18mm); Bolt head height: 0.17 inch (4.47mm); Bolt length (including the square neck): 0.75 inch (19mm)\u003c\/li\u003e\n\u003cli\u003eCarriage bolts feature a domed head with integrated square neck; The square neck mechanically locks into square receiver holes, preventing rotation; The polished dome head creates a semi-recessed installation profile, blending functional grip security with reduced surface protrusion for enhanced safety in woodworking, structural connections, and agricultural equipment applications\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOverview\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize:\u003c\/strong\u003e 5\/16-18 x 3\/4\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Black\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Stainless Steel 304\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Glvaner\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFastener Type:\u003c\/strong\u003e Carriage Bolt\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Glvaner","offers":[{"title":"Default Title","offer_id":48525932560642,"sku":"B0DBSHY6KQ-size-5-16-18-x-3-4","price":21.55,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0823\/2534\/0418\/files\/41MjEug532L_388326cd-1a9c-4511-8db5-4ee3c7db9464.jpg?v=1789777961","url":"https:\/\/mrovanta.com\/products\/20-sets-5-16-18-x-3-4-black-carriage-bolts-screws-and-hex-nuts-flat-washers-304-stainless-steel-18-8-round-head-square-neck-full-thread-coverage-size-5-16-18-x-3-4","provider":"MROVanta","version":"1.0","type":"link"}