{"product_id":"bowmalloy-36069-hex-head-cap-screw-3-8-16-x-5-5-in-grade-9","title":"Bowmalloy 36069 Hex Head Cap Screw 3\/8-16 X 5.5 in Grade 9","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe BOWMALLOY 36069 is a Grade 9 alloy steel hex head cap screw built for high-strength fastening applications where standard hardware falls short. Measuring 3\/8-16 thread size with a 5.5-inch length under head, this screw features partial threading and a clear zinc chromate finish that provides corrosion resistance in demanding environments. The Grade 9 designation places it above Grade 8 in tensile strength, making it a preferred choice for heavy equipment, hydraulic systems, and structural assemblies. Installers in HVAC, mechanical, and industrial trades reach for Grade 9 fasteners when joint integrity under vibration and load is a primary concern.\u003c\/p\u003e\u003cp\u003eThis cap screw is suited for use in inch-standard mechanical assemblies requiring a robust 3\/8-16 coarse-thread fastener in a longer length. The 5.5-inch shank accommodates thick material stacks or applications with significant clamping distance. The partial threading allows the unthreaded shank to act as a shoulder or shear member in bolted connections, adding positional accuracy and shear load capacity. Common applications include equipment mounting, bracket fabrication, and structural fastening across residential and commercial mechanical installations.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eGrade 9 alloy steel construction for tensile strength exceeding Grade 8 requirements\u003c\/li\u003e\n\u003cli\u003e3\/8-16 UNC coarse thread for broad compatibility with standard inch-series hardware\u003c\/li\u003e\n\u003cli\u003e5.5-inch length under head suits deep or thick material stack-ups\u003c\/li\u003e\n\u003cli\u003ePartially threaded shank provides shear resistance and positional control in bolted joints\u003c\/li\u003e\n\u003cli\u003eClear zinc chromate finish delivers corrosion protection in typical service environments\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a standard inch-series hex head cap screw compatible with 3\/8-16 UNC threaded nuts, inserts, and tapped holes in mechanical assemblies.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation requires a standard hex wrench or socket driver sized for a 3\/8-16 cap screw head. Always torque to the specification required by the joint design or equipment manufacturer using a calibrated torque wrench. Verify thread engagement depth meets minimum requirements before final tightening. De-energize and lock out any equipment before servicing fastened assemblies per applicable safety standards.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 3\/8-16 UNC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength Under Head\u003c\/strong\u003e: 5.5 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: Partially Threaded\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSystem of Measurement\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\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: 36069\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"BOWMALLOY","offers":[{"title":"Default Title","offer_id":52039045185842,"sku":"36069","price":121.27,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/a2b35f34640cb79dd166d4807bc475b0_03754647-4e09-4331-9bb9-d09d66540bff.jpg?v=1790025886","url":"https:\/\/voomisupply.com\/products\/bowmalloy-36069-hex-head-cap-screw-3-8-16-x-5-5-in-grade-9","provider":"Voomi Supply","version":"1.0","type":"link"}