{"product_id":"value-collection-r63266642-set-screw-1-4-28-x-5-16-in-cup-point","title":"Value Collection R63266642 Set Screw 1\/4-28 X 5\/16 in Cup Point","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VALUE COLLECTION R63266642 is a 1\/4-28 UNF cup point set screw manufactured from 18-8 stainless steel. This fully threaded fastener seats against a shaft or component surface using a recessed cup tip that bites into the mating material to resist rotation and axial movement. Drive engagement is through a 1\/8-inch hex key socket. At 5\/16 inches in overall length, it is suited for compact assemblies where a low-profile, headless fastener is required. Licensed machinists, maintenance technicians, and fabricators working with stainless assemblies in corrosion-prone or sanitary environments commonly specify this grade.\u003c\/p\u003e\n\u003cp\u003eThis set screw is used in light-to-medium duty shaft-collar, pulley, gear, and coupling applications where the fastener must remain flush with or below the surface of the component. The 1\/4-28 unified fine thread provides tight thread engagement in thinner-walled hubs and collars. The cup point geometry is appropriate where a moderate bite into the shaft surface is acceptable and light marring of the shaft is not a concern. Applications span HVAC blower assemblies, plumbing fixture hardware, electrical enclosure hardware, and general industrial fabrication.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eCup point tip provides positive grip against shaft surface to resist rotation and axial movement\u003c\/li\u003e\n  \u003cli\u003e18-8 stainless steel construction offers corrosion resistance in wet, humid, or mildly chemical environments\u003c\/li\u003e\n  \u003cli\u003e1\/4-28 UNF thread standard for fine-pitch engagement in thin-walled hubs and collars\u003c\/li\u003e\n  \u003cli\u003e1\/8-inch hex key drive allows installation in recessed or blind bores\u003c\/li\u003e\n  \u003cli\u003eHeadless design sits flush with or below the mating surface for clearance-sensitive assemblies\u003c\/li\u003e\n  \u003cli\u003e5\/16-inch overall length suits compact collar and coupling configurations\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a direct-fit replacement or standard-stock set screw for any assembly specifying a 1\/4-28 UNF cup point set screw with 5\/16-inch overall length and 1\/8-inch hex drive in 18-8 stainless steel.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed with a 1\/8-inch hex key or Allen driver. Ensure the shaft and collar bore are clean and free of debris before driving the screw to prevent cross-threading the fine-pitch thread. De-energize or lock out any rotating equipment before servicing shaft collars, pulleys, or couplings that use this fastener. Avoid over-torquing, as 18-8 stainless fasteners are susceptible to galling; use an anti-seize compound rated for stainless steel if repeated removal is anticipated.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 1\/4-28\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: 5\/16 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\/8 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\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: R63266642\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51719171080498,"sku":"R63266642","price":2885.12,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/cacec850ed2496be078d8ffc4d8001f4.jpg?v=1788557887","url":"https:\/\/voomisupply.com\/products\/value-collection-r63266642-set-screw-1-4-28-x-5-16-in-cup-point","provider":"Voomi Supply","version":"1.0","type":"link"}