{"product_id":"value-collection-40543-set-screw-3-8-16-x-1-in-grade-8-25pk","title":"Value Collection 40543 Set Screw 3\/8-16 X 1 in Grade 8 25pk","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VALUE COLLECTION 40543 is a Grade 8 alloy steel set screw with a knurled cup point, designed for high-strength clamping and locking applications in mechanical assemblies. The 3\/8-16 UNC thread and 1-inch overall length make this a widely used fastener size in industrial and trade work. Driven by a 3\/16-inch hex key, the knurled cup point bites into the mating surface to resist rotation and axial movement without requiring a traditional bolt head. This package contains 25 screws, meeting ASME\/ANSI B18.3 and ASTM F912 standards.\u003c\/p\u003e\n\u003cp\u003eThis set screw is used in shaft-collar, gear-hub, and pulley-locking applications across HVAC equipment, mechanical drive systems, and general industrial machinery. It is appropriate for both light-duty and moderate-load assemblies where a flush or recessed fastener is required. The knurled cup point provides a positive bite that suits installations where vibration or cyclic loading is a concern. Machinists, millwrights, and HVAC technicians commonly install this type of fastener.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eGrade 8 alloy steel construction for high tensile and proof load strength\u003c\/li\u003e\n  \u003cli\u003eKnurled cup point provides positive grip on shaft or mating surface\u003c\/li\u003e\n  \u003cli\u003e3\/8-16 UNC thread for broad compatibility with standard tapped holes\u003c\/li\u003e\n  \u003cli\u003e3\/16-inch hex key drive for installation in confined spaces\u003c\/li\u003e\n  \u003cli\u003eMeets ASME\/ANSI B18.3 and ASTM F912 fastener standards\u003c\/li\u003e\n  \u003cli\u003eSold in a package of 25 screws\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a standard-dimension set screw for any application requiring a 3\/8-16 UNC threaded socket set screw with a 1-inch overall length and knurled cup point per ASME\/ANSI B18.3.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation requires a 3\/16-inch hex key or Allen driver. Ensure the mating tapped hole is clean and free of debris before threading the screw in. Apply appropriate thread-locking compound if vibration is expected and the application permits it. De-energize and lock out any equipment before accessing shaft or drive assemblies.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 3\/8-16\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: UNC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 1 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePoint Type\u003c\/strong\u003e: Knurled 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: 3\/16 inch (0.1875 inch)\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\u003ePackage Quantity\u003c\/strong\u003e: 25\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.01 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: 40543\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51693350191410,"sku":"40543","price":31.6,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/9cee25babf413ba09aeae8e43b01fb90.jpg?v=1788311066","url":"https:\/\/voomisupply.com\/products\/value-collection-40543-set-screw-3-8-16-x-1-in-grade-8-25pk","provider":"Voomi Supply","version":"1.0","type":"link"}