{"product_id":"hex-head-cap-screws-grade-8-steel-plain-usa-made-5-16-18-x-5-8_3110ch8pdbb","title":"[100 PKG] Hex Head Cap Screws Grade 8 Steel Plain (USA Made) 5\/16-18 x 5\/8","description":"\u003cdiv\u003e\n\u003cp\u003eEngineered for strength and reliability, these \u003cb\u003eHex Head Cap Screws\u003c\/b\u003e Grade \u003cb\u003e8\u003c\/b\u003e Steel Plain (USA Made) \u003cb\u003e5\/16-18 x 5\/8\u003c\/b\u003e deliver heavy-duty performance for demanding assemblies. Crafted from high-tensile Grade 8 steel and finished plain for rugged, uncoated strength, these screws are ideal for industrial equipment, automotive repairs, and structural applications. Made in the USA, they meet strict quality standards to ensure consistent performance under load.\u003c\/p\u003e \u003ch3\u003eKey specifications\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cb\u003eHead style:\u003c\/b\u003e Hex head cap screw\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eGrade:\u003c\/b\u003e 8\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eMaterial:\u003c\/b\u003e Steel\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eFinish:\u003c\/b\u003e Plain (uncoated)\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eThread size:\u003c\/b\u003e 5\/16-18 UNC\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eLength:\u003c\/b\u003e 5\/8 in\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eDrive:\u003c\/b\u003e Hex\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eCountry of origin:\u003c\/b\u003e USA Made\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eApplications include heavy machinery, automotive assembly, equipment maintenance, and structural fastenings where high strength and reliability are essential. The plain finish offers robust performance in clean environments and accepts surface treatments later if needed. For best results, pair with compatible nuts or tapped holes designed for 5\/16-18 threads and consult your torque specifications for the recommended clamping force.\u003c\/p\u003e \u003ch4\u003eWhy choose these fasteners?\u003c\/h4\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cb\u003eSuperior strength:\u003c\/b\u003e Grade 8 steel for high tensile load\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eUSA made:\u003c\/b\u003e Quality you can trust\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003ePlain finish:\u003c\/b\u003e Uncoated core for versatile use\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003ePrecise thread:\u003c\/b\u003e 5\/16-18 ensures reliable fit and torque transfer\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Mutual Screw","offers":[{"title":"Default Title","offer_id":50349053280535,"sku":"3110CH8PDBB","price":29.93,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0836\/1125\/5063\/files\/hex_cap_screw_plain_steel1_18419462-253d-4485-9734-a6103dfa9059.gif?v=1744923582","url":"https:\/\/mutualscrew.com\/products\/hex-head-cap-screws-grade-8-steel-plain-usa-made-5-16-18-x-5-8_3110ch8pdbb","provider":"Mutual Screw \u0026 Supply","version":"1.0","type":"link"}