{"product_id":"holo-krome-08058-shoulder-screw-3-8-in-alloy-steel-hex-socket","title":"Holo-krome 08058 Shoulder Screw 3\/8 in Alloy Steel Hex Socket","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe HOLO-KROME 08058 is a Grade 8 alloy steel shoulder screw designed for precision fastening applications that require a hardened, close-tolerance shoulder as a pivot, spacer, or guide pin. The shoulder measures 0.3750 inches in diameter and 3 inches in length, providing a reliable bearing surface. The threaded end is 5\/16-18 UNC with a 0.5000-inch thread length. A hex socket drive accepts a 3\/16-inch hex key for installation. The rounded head measures 0.2500 inches tall with a diameter of 0.5430 to 0.5620 inches. Overall length is 3.7500 inches. This fastener is installed by mechanical, maintenance, and assembly technicians across industrial and trade applications.\u003c\/p\u003e\n\u003cp\u003eShoulder screws of this type are commonly used in jigs, fixtures, tooling plates, linkage assemblies, and machine components where a smooth, hardened pin diameter is needed for rotational or sliding movement. The uncoated alloy steel construction at Grade 8 material designation provides high tensile strength suited for demanding mechanical environments. This screw is appropriate for both original equipment and MRO replacement scenarios.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eShoulder diameter of 0.3750 inches provides close-tolerance bearing surface\u003c\/li\u003e\n  \u003cli\u003e3-inch shoulder length suitable for thicker fixtures, linkages, and spacer applications\u003c\/li\u003e\n  \u003cli\u003eGrade 8 alloy steel construction for high tensile strength\u003c\/li\u003e\n  \u003cli\u003e5\/16-18 UNC thread with 0.5000-inch thread length for secure engagement\u003c\/li\u003e\n  \u003cli\u003e3\/16-inch hex socket drive for torque-controlled installation\u003c\/li\u003e\n  \u003cli\u003eMeets ASME B1.1 and ASME B18.3 standards\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a standard ASME B18.3 shoulder screw for use in industrial machinery, fixtures, jigs, and mechanical assemblies requiring a 3\/8-inch shoulder diameter and 3-inch shoulder length with 5\/16-18 UNC threading.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed with a 3\/16-inch hex key. Ensure the receiving bore is sized to the shoulder diameter tolerance for proper fit and function. De-energize and lock out any equipment before installing or removing fasteners in live assemblies. Follow applicable ASME fastener standards for seating torque guidelines appropriate to the material and joint design.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShoulder Diameter\u003c\/strong\u003e: 0.3750 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShoulder Length\u003c\/strong\u003e: 3 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 3.7500 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 5\/16-18 UNC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Length\u003c\/strong\u003e: 0.5000 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHead Type\u003c\/strong\u003e: Rounded\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHead Diameter\u003c\/strong\u003e: 0.5430 to 0.5620 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHead Height\u003c\/strong\u003e: 0.2500 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrive Type\u003c\/strong\u003e: Hex Socket\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrive Size\u003c\/strong\u003e: 3\/16 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: 8\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinish\u003c\/strong\u003e: Uncoated\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: UNRC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandards\u003c\/strong\u003e: ASME B1.1, ASME B18.3\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMinimum Order Quantity\u003c\/strong\u003e: 5\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: HOLO-KROME\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 08058\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HOLO-KROME","offers":[{"title":"Default Title","offer_id":51734892085554,"sku":"08058","price":4588.78,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/11d9eadbc87dfabd2d8f89a9fea5136a.jpg?v=1788767691","url":"https:\/\/voomisupply.com\/products\/holo-krome-08058-shoulder-screw-3-8-in-alloy-steel-hex-socket","provider":"Voomi Supply","version":"1.0","type":"link"}