{"product_id":"holo-krome-08148-shoulder-screw-3-4-in-alloy-steel-hex-socket","title":"Holo-krome 08148 Shoulder Screw 3\/4 in Alloy Steel Hex Socket","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe HOLO-KROME 08148 is a hex socket shoulder screw machined from Grade 8 alloy steel, designed for precise locating, pivoting, and bearing-retention applications in mechanical assemblies. The shoulder diameter measures 0.75 inches with a shoulder length of 5.5 inches, providing an extended bearing surface for bushings, bearings, or linkage components that require a controlled-diameter shaft. The threaded portion is 5\/8-11 UNC with a thread length of 0.875 inches. A rounded head with a 1-inch diameter and 0.5-inch head height accepts a 3\/8-inch hex key drive. The uncoated finish maintains dimensional tolerance for tight-fit applications. Licensed HVAC techs, millwrights, and mechanical contractors install this type of fastener during assembly of fixtures, jigs, and mechanical linkages.\u003c\/p\u003e\n\u003cp\u003eThis shoulder screw is suited for industrial and commercial mechanical assembly work where a precisely ground shoulder diameter is required to locate or retain a rotating or sliding component. Typical applications include pivot points in linkage assemblies, bushing retention in fabricated fixtures, and guide-pin functions in tooling and machinery. The extended 5.5-inch shoulder length accommodates thicker material stacks or multi-layer assemblies. It conforms to ASME B18.3 socket screw dimensional standards and ASME B1.1 thread standards, making it a specification-grade fastener for engineered assemblies.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e0.75-inch shoulder diameter with 5.5-inch shoulder length for extended bearing surface\u003c\/li\u003e\n  \u003cli\u003e5\/8-11 UNC thread at 0.875-inch thread length for secure engagement\u003c\/li\u003e\n  \u003cli\u003eGrade 8 alloy steel construction for high tensile and shear strength\u003c\/li\u003e\n  \u003cli\u003e3\/8-inch hex socket drive for standard Allen key or hex bit installation\u003c\/li\u003e\n  \u003cli\u003eRounded head, 1-inch diameter and 0.5-inch height, sits flush against mating surfaces\u003c\/li\u003e\n  \u003cli\u003eConforms to ASME B18.3 and ASME B1.1 standards\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style and specification-grade replacement shoulder screw for mechanical assemblies requiring a 3\/4-inch shoulder diameter, 5\/8-11 UNC thread, and Grade 8 alloy steel construction per ASME B18.3.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by machinists, millwrights, or mechanical technicians using a 3\/8-inch hex key or hex bit driver. De-energize and lock out all power to the assembly before removing or installing fasteners. Apply only hand or calibrated torque tools rated for the fastener grade — do not use impact drivers that may over-torque the threaded engagement. Verify the mating bore diameter and thread engagement depth meet engineering specifications before final assembly.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShoulder Diameter\u003c\/strong\u003e: 0.75 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShoulder Length\u003c\/strong\u003e: 5.5 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 6.875 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 5\/8-11 UNC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Length\u003c\/strong\u003e: 0.875 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHead Diameter\u003c\/strong\u003e: 1 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHead Height\u003c\/strong\u003e: 0.5 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\/8 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHead Type\u003c\/strong\u003e: Rounded\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\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: 08148\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HOLO-KROME","offers":[{"title":"Default Title","offer_id":51729385521458,"sku":"08148","price":74.32,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/b00012f753a9090fb1df65ceda69a45b.jpg?v=1788703954","url":"https:\/\/voomisupply.com\/products\/holo-krome-08148-shoulder-screw-3-4-in-alloy-steel-hex-socket","provider":"Voomi Supply","version":"1.0","type":"link"}