{"product_id":"7-8-unc-x-3-3-4-inch-hex-bolt-bright-zinc-plated-grade-8-8","title":"7\/8 UNC x 3 3\/4 inch Hex Bolt, Bright Zinc Plated, Grade 8.8","description":"\u003ch2\u003e\u003cstrong\u003eUNC Hex Bolt\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eBuilt for strength and reliability, the UNC hex bolt is engineered from Grade 8.8 high-tensile steel for strength and durability, with a bright zinc plated for a mid-level corrosion resistance. \u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eA hex head bolt, with a unified coarse thread (UNC) ideal for heavy-duty construction, machinery assembly, steel fabrication, and automotive repairs.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eUsed by professionals and DIY enthusiasts alike to ensure a lasting connection in high-stress environments including structural steelwork, machinery, and automotive industries.\u003cbr\u003e\u003c\/p\u003e\n\u003ch3\u003e\n\u003cstrong\u003eUNC hex bolt specifications\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize: \u003c\/strong\u003e7\/8 UNC x 3 3\/4 inch (Unified Coarse Thread)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Bright Zinc Plated (BZP)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Grade 8.8 High Tensile Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHead Type:\u003c\/strong\u003e Hex head - allows for easy tightening using standard spanners or sockets\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eGrade 8.8 bolts offer excellent tensile strength making them the go-to choice for load-bearing and mechanical applications.\u003cbr\u003e\u003c\/p\u003e\n\u003ch3\u003e\n\u003cstrong\u003eTypical Applications for UNC hex bolts\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eStructural connections and frameworks\u003c\/li\u003e\n\u003cli\u003eAgricultural and industrial equipment\u003c\/li\u003e\n\u003cli\u003eSteel fabrication projects\u003c\/li\u003e\n\u003cli\u003eAutomotive and mechanical repairs\u003c\/li\u003e\n\u003cli\u003eEngineering and maintenance work\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\n\u003cstrong\u003eFAQs for UNC hex bolts\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhat does Grade 8.8 mean on a bolt?\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eGrade 8.8 refers to the bolt’s tensile strength rating and it indicates high strength and hardness suitable for demanding mechanical or structural use.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the benefit of Bright Zinc Plating?\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eThe BZP coating helps prevent rust and corrosion, extending the bolt’s life, especially in dry or indoor conditions. For external application in more harsh conditions, A2 and A4 stainless steel is recommended.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I use UNC bolts with metric nuts?\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eNo, UNC (Unified Coarse Thread) bolts are part of the imperial system and should only be used with matching UNC nuts.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs this bolt suitable for outdoor use?\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eBright Zinc Plating provides some corrosion resistance, but for external harsh conditions A2 stainless steel hex bolts are recommended. For salt water and marine environments A4 stainless steel is recommended.\u003cbr\u003e\u003c\/p\u003e","brand":"Fusion Fixings","offers":[{"title":"Qty Price Break - 1","offer_id":56308542210431,"sku":"HB-UNCBZP-78334","price":5.29,"currency_code":"GBP","in_stock":true},{"title":"Qty Price Break - 5","offer_id":56308542308735,"sku":"HB-UNCBZP-78334","price":4.09,"currency_code":"GBP","in_stock":true},{"title":"Qty Price Break - 10","offer_id":56308542472575,"sku":"HB-UNCBZP-78334","price":3.29,"currency_code":"GBP","in_stock":true},{"title":"Qty Price Break - 25","offer_id":56308542603647,"sku":"HB-UNCBZP-78334","price":2.89,"currency_code":"GBP","in_stock":true},{"title":"Qty Price Break - 50","offer_id":56308542734719,"sku":"HB-UNCBZP-78334","price":2.69,"currency_code":"GBP","in_stock":true},{"title":"Qty Price Break - 100","offer_id":56308542800255,"sku":"HB-UNCBZP-78334","price":2.59,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0581\/6090\/6293\/files\/hex-bolt-1.png?v=1761744164","url":"https:\/\/www.fusionfixings.co.uk\/products\/7-8-unc-x-3-3-4-inch-hex-bolt-bright-zinc-plated-grade-8-8","provider":"Fusion Fixings","version":"1.0","type":"link"}