{"product_id":"hex-head-cap-screws-grade-8-steel-plain-usa-made-5-8-18-x-1-1-4_6320ch8pusabb","title":"[225 PKG] Hex Head Cap Screws Grade 8 Steel Plain (USA Made) 5\/8-18 x 1-1\/4","description":"\u003cdiv\u003e\n\u003cp\u003eUpgrade your rig with Hex Head Cap Screws Grade 8 Steel Plain (USA Made) 5\/8-18 x 1-1\/4. These high-strength fasteners are crafted from premium Grade 8 steel and finished plain for maximum durability in demanding assemblies. Made in the USA, they deliver reliable performance in rugged environments where safety and structural integrity matter.\u003c\/p\u003e \u003cp\u003e\u003cb\u003eKey features\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cb\u003eMaterial:\u003c\/b\u003e Grade 8 steel\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eFinish:\u003c\/b\u003e Plain (uncoated)\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eHead style:\u003c\/b\u003e Hex head cap screw\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eThread size:\u003c\/b\u003e 5\/8-18 UNC\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eLength:\u003c\/b\u003e 1-1\/4 inches\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eCountry of origin:\u003c\/b\u003e USA-made\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eDrive type:\u003c\/b\u003e Hex drive for standard wrenches and sockets\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eApplications include heavy machinery, automotive assemblies, equipment mounting, and other high-stress joints where a strong, dependable fastener is essential. The plain finish keeps costs down and allows for in-service painting or plating if needed, while Grade 8 steel provides superior shear and tensile strength compared to lower grades.\u003c\/p\u003e \u003cp\u003eTo ensure the best performance, pair these hex head cap screws with matching nuts or tapped holes that meet 5\/8-18 UNC specifications, and tighten using the appropriate torque for Grade 8 fasteners based on your materials and load requirements.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Mutual Screw","offers":[{"title":"Default Title","offer_id":50349037617431,"sku":"6320CH8PUSABB","price":165.88,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0836\/1125\/5063\/files\/hex_cap_screw_plain_steel1_a2e214ea-ae5e-403c-bd40-706897f6da18.gif?v=1744982677","url":"https:\/\/mutualscrew.com\/products\/hex-head-cap-screws-grade-8-steel-plain-usa-made-5-8-18-x-1-1-4_6320ch8pusabb","provider":"Mutual Screw \u0026 Supply","version":"1.0","type":"link"}