{"product_id":"value-collection-r40321431-set-screw-5-16-18-x-3-4-in","title":"Value Collection R40321431 Set Screw 5\/16-18 X 3\/4 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VALUE COLLECTION R40321431 is a 5\/16-18 x 3\/4 inch cup point set screw manufactured from Grade 18-8 stainless steel. Set screws are fully threaded fasteners with no head — they seat flush or below the surface of a mating part to lock components in place through direct contact or embedding. The cup point geometry concentrates clamping force at the contact face, creating a shallow indent that resists rotation and axial movement. This screw is driven with a 3\/32 inch hex key. The 18-8 stainless steel construction offers solid corrosion resistance for indoor and moderate outdoor applications. It is a standard UNC threaded fastener used across mechanical, HVAC, plumbing, and electrical assembly applications.\u003c\/p\u003e\n\u003cp\u003eCup point set screws in this size range are commonly used to secure collars, pulleys, sprockets, knobs, and shaft-mounted components in light-to-medium duty assemblies. They appear in residential and commercial HVAC equipment, pump assemblies, valve actuators, and general mechanical assemblies where a low-profile, headless fastener is required. The UNC 5\/16-18 thread is a widely used standard pitch, making this screw a common replacement or stock item for maintenance and repair work. Licensed tradespeople and maintenance technicians installing or servicing mechanical equipment are the primary users.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e5\/16-18 UNC thread for broad compatibility with standard tapped holes\u003c\/li\u003e\n  \u003cli\u003e3\/4 inch overall length provides adequate engagement depth for most shaft and collar applications\u003c\/li\u003e\n  \u003cli\u003eCup point geometry locks onto shafts and creates a positive indent to resist movement\u003c\/li\u003e\n  \u003cli\u003eGrade 18-8 stainless steel construction resists corrosion in wet or humid environments\u003c\/li\u003e\n  \u003cli\u003e3\/32 inch hex drive — compatible with standard Allen keys and hex bit sets\u003c\/li\u003e\n  \u003cli\u003eHeadless design sits flush or below surface for clearance-critical installations\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a standard UNC set screw for use in any component with a tapped 5\/16-18 through hole or blind hole requiring a cup point headless fastener.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation requires a 3\/32 inch hex key or matching Allen bit. De-energize or shut down any equipment before accessing shaft-mounted components. Clean and inspect the tapped hole for debris or damage before threading in the screw. Do not exceed the torque limits appropriate for 18-8 stainless steel in this thread size, and avoid overtightening, which can gall stainless threads — apply an anti-galling lubricant if reinstalling into stainless tapped holes.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 5\/16-18 UNC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength\u003c\/strong\u003e: 3\/4 inches (overall)\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: 3\/32 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\u003eThread Standard\u003c\/strong\u003e: UNC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.012 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: R40321431\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51692906185010,"sku":"R40321431","price":4306.63,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/f8da64738b31617a7f76f8b42230577a.jpg?v=1788304779","url":"https:\/\/voomisupply.com\/products\/value-collection-r40321431-set-screw-5-16-18-x-3-4-in","provider":"Voomi Supply","version":"1.0","type":"link"}