{"product_id":"value-collection-101589pr-set-screw-1-2-20-x-1-2-inch-grade-8","title":"Value Collection 101589PR Set Screw 1\/2-20 X 1\/2 Inch Grade 8","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe VALUE COLLECTION 101589PR is a cup point set screw designed for mechanical assemblies requiring a secure, vibration-resistant hold. Threaded 1\/2-20 UNF with an overall length of 0.5 inches, this fastener is manufactured from alloy steel to Grade 8 specifications, delivering high tensile and proof load strength suitable for demanding industrial and trade applications. It is driven with a 1\/4-inch hex key and conforms to ASME\/ANSI B18.3 and ASTM F912 standards. Machinists, millwrights, and mechanical contractors install these fasteners in shaft-to-hub connections, collars, pulleys, and similar mechanical power transmission components.\u003c\/p\u003e\u003cp\u003eThis set screw is suited for use in rotating shaft assemblies, motor shaft collars, sprockets, gears, and similar mechanical components where a flush or below-surface fastener is required. The cup point bites into the shaft surface to resist rotational and axial movement. Applications span industrial machinery, HVAC equipment assemblies, and general mechanical fabrication. Minimum order quantity is 100 pieces per order, with individual unit packaging.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e1\/2-20 UNF thread for fine-pitch, high-strength engagement\u003c\/li\u003e\n\u003cli\u003eCup point geometry bites into shaft material to resist movement under load\u003c\/li\u003e\n\u003cli\u003eGrade 8 alloy steel construction for high tensile strength\u003c\/li\u003e\n\u003cli\u003e1\/4-inch hex drive compatible with standard hex keys and Allen wrenches\u003c\/li\u003e\n\u003cli\u003eMeets ASME\/ANSI B18.3 and ASTM F912 dimensional and material standards\u003c\/li\u003e\n\u003cli\u003eFractional inch measurement type for straightforward sizing verification\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a standard 1\/2-20 UNF cup point set screw for use in any mechanical assembly requiring ASME\/ANSI B18.3-compliant Grade 8 alloy steel fasteners of this thread size and length.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation requires a 1\/4-inch hex key or Allen wrench. De-energize and lock out any machinery before installing or removing set screws from rotating assemblies, in accordance with applicable OSHA lockout\/tagout procedures. Do not over-torque, as this can damage the shaft surface or strip the socket. Verify thread engagement and seating of the cup point fully against the shaft before returning equipment to service.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 1\/2-20\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: UNF\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 0.5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePoint Type\u003c\/strong\u003e: Cup\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrive Type\u003c\/strong\u003e: Hex\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHex Key Size\u003c\/strong\u003e: 1\/4 inch (0.2500 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: Grade 8\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFastener Standard\u003c\/strong\u003e: ASME\/ANSI B18.3, ASTM F912\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeasurement Type\u003c\/strong\u003e: Fractional 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: 31161505\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\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: 101589PR\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51720716386610,"sku":"101589PR","price":5409.03,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/fee44cbf1378aeaf13284ee01939992c.jpg?v=1788568127","url":"https:\/\/voomisupply.com\/products\/value-collection-101589pr-set-screw-1-2-20-x-1-2-inch-grade-8","provider":"Voomi Supply","version":"1.0","type":"link"}