{"product_id":"value-collection-r57600618-shoulder-screw-5-8-in-18-8-ss","title":"Value Collection R57600618 Shoulder Screw 5\/8 in 18-8 Ss","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VALUE COLLECTION R57600618 is a hex socket shoulder screw machined from 18-8 stainless steel with an uncoated finish. It features a 5\/8-inch shoulder diameter and a 3-1\/4-inch shoulder length, making it well suited for applications that require a precision shaft for pivot points, linkages, or guided assemblies. The threaded portion is cut to 1\/2-13 UNC, and the head accepts a 5\/16-inch hex socket driver. Machinists, maintenance technicians, and mechanical assemblers install this type of fastener wherever a smooth, hardened bearing surface is needed within a bolted joint or moving assembly.\u003c\/p\u003e\n\u003cp\u003eShoulder screws of this type are used across a range of industrial and mechanical applications including jig and fixture building, die sets, cam followers, pulleys, and pivot assemblies. The 18-8 stainless steel construction provides good corrosion resistance, making it appropriate for environments exposed to moisture or mild chemical contact. The uncoated finish maintains dimensional accuracy across the shoulder, which is critical when the shoulder functions as a precision shaft or bearing surface inside a bore or bushing.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e5\/8-inch shoulder diameter for precision fit in matching bores or bushings\u003c\/li\u003e\n  \u003cli\u003e3-1\/4-inch shoulder length provides an extended bearing surface for pivot and linkage applications\u003c\/li\u003e\n  \u003cli\u003e1\/2-13 UNC thread for secure clamping with standard fastener hardware\u003c\/li\u003e\n  \u003cli\u003e5\/16-inch hex socket drive for torque application with standard Allen or hex bit drivers\u003c\/li\u003e\n  \u003cli\u003e18-8 stainless steel construction offers corrosion resistance and moderate strength\u003c\/li\u003e\n  \u003cli\u003eUncoated finish preserves tight shoulder tolerances required for shaft and bearing applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a standard shoulder screw for use in jigs, fixtures, dies, pivot assemblies, and mechanical linkages requiring a 5\/8-inch diameter shoulder, 3-1\/4-inch shoulder length, and 1\/2-13 UNC thread.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is typically performed by machinists or mechanical maintenance technicians using a 5\/16-inch hex key or hex bit driver. Ensure the mating bore diameter matches the shoulder diameter to the required tolerance before installation. Degrease mating surfaces as needed and avoid applying thread locking compounds to the shoulder itself. Follow applicable facility or equipment manufacturer torque guidelines for the 1\/2-13 UNC thread engagement.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShoulder Diameter\u003c\/strong\u003e: 5\/8 inches (0.6250 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShoulder Length\u003c\/strong\u003e: 3-1\/4 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 1\/2-13 UNC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHead Diameter\u003c\/strong\u003e: 7\/8 inches (0.8750 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHead Height\u003c\/strong\u003e: 3\/8 inches (0.3750 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: 5\/16 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Stainless Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: 18-8\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinish\u003c\/strong\u003e: Uncoated\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.35 pounds\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: VALUE COLLECTION\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: R57600618\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51691343118642,"sku":"R57600618","price":47.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/4bbbd449d3521c86e24ad818bddd67ec.jpg?v=1788283514","url":"https:\/\/voomisupply.com\/products\/value-collection-r57600618-shoulder-screw-5-8-in-18-8-ss","provider":"Voomi Supply","version":"1.0","type":"link"}