{"product_id":"hex-head-cap-screws-grade-8-steel-plain-fine-thread-5-8-18-x-4-pt_6364ch8pbb","title":"[25 PKG] Hex Head Cap Screws Grade 8 Steel Plain Fine Thread 5\/8-18 x 4\"\" (PT)","description":"\u003cdiv\u003e\n\u003cp\u003e\u003cb\u003eHex Head Cap Screws Grade 8 Steel – Plain Finish, Fine Thread 5\/8-18 x 4 in (PT)\u003c\/b\u003e deliver reliable, high-strength performance for demanding assemblies. Crafted from Grade 8 steel, these hex screws provide excellent tensile strength and durability, making them ideal for heavy-duty equipment, machinery, and automotive applications. The plain finish indicates an uncoated, robust steel fastener designed for dry or indoor environments where maximum strength is required.\u003c\/p\u003e \u003cp\u003eDesigned for precision and secure clamping, the fine thread on these screws offers superior engagement and resistance to loosening under vibration. The 5\/8-18 thread size and 4 inch length accommodate a wide range of applications, pairing well with standard nuts and tapped holes sized to 5\/8-18.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cb\u003eHead style:\u003c\/b\u003e Hex Head Cap Screws\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eMaterial \/ Grade:\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\u003eThread type:\u003c\/b\u003e Fine\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eThread size:\u003c\/b\u003e 5\/8-18\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eLength:\u003c\/b\u003e 4 inches\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eDesignation:\u003c\/b\u003e (PT) included in the product title\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cb\u003eHead:\u003c\/b\u003e Hex\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\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eThread:\u003c\/b\u003e Fine\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eThread size:\u003c\/b\u003e 5\/8-18\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eLength:\u003c\/b\u003e 4 in\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cp\u003eIdeal for automotive, manufacturing, and machinery assemblies where high-strength fasteners are essential. Use with compatible nuts, washers, and tapped holes sized to 5\/8-18, and apply proper torque to ensure secure, lasting performance.\u003c\/p\u003e \u003ch3\u003eWhy choose Grade 8 steel hex screws?\u003c\/h3\u003e\n\u003cp\u003eGrade 8 steel offers superior tensile strength and durability for heavy-duty equipment. The fine thread provides excellent holding power and precision, making these screws a dependable choice for high-stress applications that demand reliable clamping and long service life.\u003c\/p\u003e \u003cp\u003e\u003cb\u003eAdd to cart\u003c\/b\u003e to secure your project with premium Grade 8 hex head cap screws.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Mutual Screw","offers":[{"title":"Default Title","offer_id":50349014712599,"sku":"6364CH8PBB","price":111.74,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0836\/1125\/5063\/files\/hex_cap_screw_plain_steel1_c2e0f284-9d44-42d6-b1c8-7b5b8cef3fe2.gif?v=1744935525","url":"https:\/\/mutualscrew.com\/products\/hex-head-cap-screws-grade-8-steel-plain-fine-thread-5-8-18-x-4-pt_6364ch8pbb","provider":"Mutual Screw \u0026 Supply","version":"1.0","type":"link"}