{"product_id":"bowmalloy-36304-hex-head-cap-screw-1-4-28-x-1-in-grade-9","title":"Bowmalloy 36304 Hex Head Cap Screw 1\/4-28 X 1 in Grade 9","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe BOWMALLOY 36304 is a fully threaded hex head cap screw designed for high-strength fastening in demanding mechanical and structural applications. Manufactured from Grade 9 alloy steel, this fastener delivers superior tensile and proof load strength compared to standard Grade 5 or Grade 8 hardware. The 1\/4-28 UNF fine thread profile provides excellent holding power in tight-tolerance assemblies, while the clear zinc chromate finish offers corrosion resistance suitable for general industrial environments. At 1 inch in length under the head, this screw fits compact joint configurations where a short, strong fastener is required. HVAC, mechanical, and industrial service technicians commonly use Grade 9 fasteners when OEM specifications call for high-strength inch-series hardware.\u003c\/p\u003e\n\u003cp\u003eThis hex head cap screw is suited for use in residential and commercial mechanical assemblies, equipment mounting, structural bracketing, and industrial machinery where fine-thread, high-strength fasteners are specified. The 1\/4-28 UNF thread is commonly found in precision mechanical joints, thin-material assemblies, and applications requiring resistance to vibration loosening. Full threading along the shank allows for maximum thread engagement across the full grip length, making it appropriate for shallow or variable-depth tapped holes.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eGrade 9 alloy steel construction for high tensile strength exceeding standard Grade 8 hardware\u003c\/li\u003e\n  \u003cli\u003e1\/4-28 UNF fine thread for superior vibration resistance and precise thread engagement\u003c\/li\u003e\n  \u003cli\u003eFully threaded shank maximizes holding strength in shallow tapped holes\u003c\/li\u003e\n  \u003cli\u003eClear zinc chromate finish provides corrosion protection in general-duty environments\u003c\/li\u003e\n  \u003cli\u003e1 inch length under head suits compact fastening configurations\u003c\/li\u003e\n  \u003cli\u003eInch measurement system; UNSPSC Code 31161501 for procurement classification\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a high-strength replacement or OEM-style fastener for applications specifying 1\/4-28 UNF hex head cap screws in Grade 9 alloy steel. Verify thread class and grip length requirements against equipment specifications before installation.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by qualified mechanical technicians or tradespeople using standard hex head tooling. Always confirm the mating thread is clean and free of damage before driving the fastener. Do not mix Grade 9 fasteners with lower-grade hardware in the same joint without verifying load calculations. Torque to the equipment manufacturer's specification for the applicable fastener grade and size.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 1\/4-28 UNF\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength Under Head\u003c\/strong\u003e: 1 inch\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\u003eMeasurement System\u003c\/strong\u003e: Inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.01 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 31161501\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\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: 36304\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"BOWMALLOY","offers":[{"title":"Default Title","offer_id":52008569766194,"sku":"36304","price":53.1,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/dda6031e2941e4c83d2fd96ad0961b39_e71d769d-57e6-4b0b-be15-0dd2f2aca43f.jpg?v=1790002478","url":"https:\/\/voomisupply.com\/products\/bowmalloy-36304-hex-head-cap-screw-1-4-28-x-1-in-grade-9","provider":"Voomi Supply","version":"1.0","type":"link"}