{"product_id":"armor-coat-ust235751-hex-head-cap-screw-5-16-18-grade-8","title":"Armor Coat UST235751 Hex Head Cap Screw 5\/16-18 Grade 8","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe ARMOR COAT UST235751 is a fully threaded hex head cap screw designed for high-strength fastening applications in mechanical, structural, and equipment assembly work. Manufactured from Grade 8 steel with an Armor Coat finish for corrosion resistance, this fastener meets ASME B18.2.1 and SAE J429 dimensional and strength standards. The 5\/16-18 UNC thread profile and 1-1\/4 inch length under head make it a dependable choice where precise fit and tensile performance are required. Installers in HVAC, plumbing, electrical, and general mechanical trades rely on Grade 8 hardware for high-load connections that standard zinc-plated fasteners cannot handle.\u003c\/p\u003e\n\u003cp\u003eThis cap screw is suited for use in equipment mounting, bracket assembly, panel fastening, and other structural connections where Grade 8 strength and a corrosion-resistant finish are specified. The UNC thread form is compatible with standard inch-series tapped holes and nuts. Minimum order quantity is 100 pieces, making it appropriate for service fleets, shop stock, and job-site supply. Each package contains 1 piece per the supplier unit of measure.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eGrade 8 steel construction for high tensile and proof-load strength\u003c\/li\u003e\n  \u003cli\u003eArmor Coat finish provides corrosion protection in exposed or outdoor installations\u003c\/li\u003e\n  \u003cli\u003eFully threaded shank along the 1-1\/4 inch length under head\u003c\/li\u003e\n  \u003cli\u003e5\/16-18 UNC thread for compatibility with standard inch-series fastener hardware\u003c\/li\u003e\n  \u003cli\u003eMeets ASME B18.2.1 and SAE J429 standards for dimensional accuracy and mechanical properties\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use in standard inch-series tapped holes and with 5\/16-18 UNC hex nuts and washers. Suitable for general mechanical and structural fastening applications requiring Grade 8 tensile strength and a corrosion-resistant finish.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstall using a standard hex socket or open-end wrench sized for the 5\/16 hex head. Follow equipment manufacturer torque specifications for Grade 8 fasteners at this thread size. Ensure mating threads are clean and free of debris before assembly. Replace any fastener that shows signs of thread damage, galling, or coating failure.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 5\/16-18\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength Under Head\u003c\/strong\u003e: 1-1\/4 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: UNC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThreading\u003c\/strong\u003e: Fully Threaded\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: Grade 8\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinish Coating\u003c\/strong\u003e: Armor Coat\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.003 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandards\u003c\/strong\u003e: ASME B18.2.1, ASME\/ANSI B18.2.1, SAE J429\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSystem of Measurement\u003c\/strong\u003e: Inch\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: ARMOR COAT\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: UST235751\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ARMOR COAT","offers":[{"title":"Default Title","offer_id":67909763072306,"sku":"UST235751","price":6377.62,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/9c91787f80b9223f1e2a5be612d1c55e.jpg?v=1791191627","url":"https:\/\/voomisupply.com\/products\/armor-coat-ust235751-hex-head-cap-screw-5-16-18-grade-8","provider":"Voomi Supply","version":"1.0","type":"link"}