{"product_id":"bowmalloy-36406-hex-head-cap-screw-1-2-20-x-1-1-2-in-grade-9","title":"Bowmalloy 36406 Hex Head Cap Screw 1\/2-20 X 1-1\/2 in Grade 9","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe BOWMALLOY 36406 is a fully threaded hex head cap screw designed for high-strength fastening applications in industrial, mechanical, and structural assemblies. Manufactured from Grade 9 alloy steel, this fastener delivers superior tensile and proof load strength compared to Grade 5 and Grade 8 hardware. The 1\/2-20 thread pitch is a fine-thread designation that provides increased thread engagement and resistance to loosening under vibration. The clear zinc chromate finish provides a baseline layer of corrosion protection suitable for general service environments. Tradespeople across HVAC, plumbing, and mechanical contracting use Grade 9 fasteners where elevated clamping force and fatigue resistance are required.\u003c\/p\u003e\u003cp\u003eThis cap screw is sized at 1\/2-20 x 1-1\/2 inches, making it a common choice for flange bolting, equipment mounting, and machinery assembly where a fine-thread, high-strength hex head fastener is specified. The fully threaded shank allows for maximum engagement across the entire grip length, which is particularly useful in shallow-clearance or thin-material installations. It suits both new construction and replacement service work on industrial equipment and mechanical systems.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eGrade 9 alloy steel construction for high tensile and proof load strength\u003c\/li\u003e\n\u003cli\u003e1\/2-20 fine-thread form improves vibration resistance and thread engagement\u003c\/li\u003e\n\u003cli\u003eFully threaded shank maximizes clamping force across the full grip length\u003c\/li\u003e\n\u003cli\u003eClear zinc chromate finish provides corrosion resistance for general service use\u003c\/li\u003e\n\u003cli\u003eHex head drive compatible with standard hex wrenches and impact sockets\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a high-strength replacement or service fastener for applications requiring a 1\/2-20 fine-thread hex head cap screw in Grade 9 alloy steel.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a qualified mechanic or tradesperson using the appropriate torque specifications called out by the equipment or assembly manufacturer. Always verify thread engagement depth before final torque. Do not mix inch and metric fasteners in the same assembly. Clean threads and mating surfaces before installation to ensure accurate torque readings.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 1\/2-20\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength Under Head\u003c\/strong\u003e: 1-1\/2 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Alloy Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: 9\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish Coating\u003c\/strong\u003e: Clear Zinc Chromate\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThreading\u003c\/strong\u003e: Fully Threaded\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSystem of Measurement\u003c\/strong\u003e: Inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 31161501\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.01 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: BOWMALLOY\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 36406\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"BOWMALLOY","offers":[{"title":"Default Title","offer_id":52119154458930,"sku":"36406","price":110.46,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/2681f87dcea131152efe4fc87c5afeba_a508731c-7404-4526-a036-94aec58d85d7.jpg?v=1790082803","url":"https:\/\/voomisupply.com\/products\/bowmalloy-36406-hex-head-cap-screw-1-2-20-x-1-1-2-in-grade-9","provider":"Voomi Supply","version":"1.0","type":"link"}