{"product_id":"hillman-1-in-d-x-3-1-2-in-l-heat-treated-steel-hex-head-cap-screw-10-pk","title":"HILLMAN 1 in. D X 3-1\/2 in. L Heat Treated Steel Hex Head Cap Screw 10 pk","description":"\u003cdiv\u003e\n\u003cp\u003eWhen reliability matters in heavy-duty assemblies, Hillman 1 in. D x 3-1\/2 in. L Heat Treated Steel Hex Head Cap Screw is ready to bite into metal with precision and staying power. Built from heat-treated steel and rated Grade 8, this fastener is designed to withstand high loads, resist wear, and maintain torque under vibration.\u003c\/p\u003e \u003cp\u003eKey specifications at a glance:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eHead diameter:\u003c\/strong\u003e 1 in\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eLength:\u003c\/strong\u003e 3-1\/2 in\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Steel\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Heat treated\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eGrade:\u003c\/strong\u003e 8\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThread type:\u003c\/strong\u003e Coarse\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePackage:\u003c\/strong\u003e 10 count, boxed\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eProduct type:\u003c\/strong\u003e Hex head cap screw\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWhy choose heat-treated Grade 8 hex head cap screws?\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eSuperior tensile strength and hardness for critical applications, such as machinery frames, equipment mounts, and heavy-duty shelving supports.\u003c\/li\u003e \u003cli\u003eCoarse threads provide reliable engagement and faster assembly in metal with standard tapped holes or with nuts, especially where quick, strong fastening is needed.\u003c\/li\u003e \u003cli\u003e1-inch hex head size accepts standard wrenches and sockets, delivering solid torque transfer without cam-out on demanding jobs.\u003c\/li\u003e \u003cli\u003eEach screw ships boxed in a convenient 10-pack, making it easy to stockpile for multi-step projects or maintenance kits.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eIdeal use cases\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eMachinery mounting bolts and frame joints where maximum load-bearing capability is required.\u003c\/li\u003e \u003cli\u003eIndustrial shelving, equipment enclosures, and workshop hardware that sees constant vibration.\u003c\/li\u003e \u003cli\u003eAutomotive or trailer assemblies where precise, high-strength fasteners are essential.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003ePractical tips for best results\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003ePair with compatible Grade 8 nuts and flat washers for a secure, load-distributing connection.\u003c\/li\u003e \u003cli\u003eApply a light thread lubricant to ease installation and reduce galling, especially in repetitive assemblies.\u003c\/li\u003e \u003cli\u003eFor vibration-prone setups, consider thread locking compound or lock washers to maintain torque over time.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Hillman","offers":[{"title":"Default Title","offer_id":52171854283026,"sku":"54799","price":109.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0928\/1024\/8466\/files\/54799_LA.eps_High.jpg?v=1775503225","url":"https:\/\/nationalhardwaregroup.com\/products\/hillman-1-in-d-x-3-1-2-in-l-heat-treated-steel-hex-head-cap-screw-10-pk","provider":"National Hardware Group","version":"1.0","type":"link"}