{"product_id":"value-collection-bt-1428-250-as-set-screw-1-4-28","title":"Value Collection BT-1428-250-AS Set Screw 1\/4-28","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VALUE COLLECTION BT-1428-250-AS is a 1\/4-28 threaded set screw with a soft tip point configuration, manufactured from Grade 8 alloy steel with a brass tip insert. Set screws of this type are headless fasteners used to secure a component — such as a collar, pulley, or gear — against a shaft or within a bore. The brass tip protects the mating surface from damage while maintaining holding force. The hex drive socket accepts a standard hex key for installation and removal. This fastener is commonly installed by millwrights, pipefitters, HVAC technicians, and maintenance mechanics working on rotating equipment and mechanical assemblies.\u003c\/p\u003e\n\u003cp\u003eThis set screw is suited for applications where surface protection of the mating part is a priority. The soft brass tip deforms slightly under load, conforming to the shaft surface and reducing the risk of scoring or marring. Typical applications include shaft collars on blower assemblies, fan hubs, pump couplings, and mechanical drives found in commercial and residential HVAC systems, plumbing equipment, and general industrial machinery. The 1\/4-28 UNF thread standard ensures compatibility with fine-thread tapped holes in precision assemblies.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eGrade 8 alloy steel body for high tensile and torsional strength\u003c\/li\u003e\n  \u003cli\u003eBrass soft tip protects mating shaft surfaces from scoring during installation\u003c\/li\u003e\n  \u003cli\u003eHex drive socket accepts standard hex keys for installation in tight clearances\u003c\/li\u003e\n  \u003cli\u003e1\/4-28 UNF fine thread for precise engagement and vibration resistance\u003c\/li\u003e\n  \u003cli\u003e1\/4-inch thread engagement length suitable for shallow tapped bosses and collars\u003c\/li\u003e\n  \u003cli\u003eHeadless profile allows flush or below-flush installation in threaded bores\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a standard 1\/4-28 UNF soft-tip set screw for use in any tapped bore conforming to the UNF 1\/4-28 thread standard where a brass-tipped, hex-drive headless fastener is specified.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed with a hex key of the appropriate size; verify the driver fits the socket cleanly before applying torque to avoid rounding. Ensure the tapped hole is clean and free of debris before threading the screw in by hand. Power down or de-energize any rotating equipment completely before servicing shaft-mounted components secured by set screws. Follow applicable ANSI and equipment manufacturer guidelines for fastener seating in mechanical assemblies.\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 \/ UNC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength\u003c\/strong\u003e: 1\/4 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrive Type\u003c\/strong\u003e: Hex\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePoint Type\u003c\/strong\u003e: Soft Tip\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\u003eTip Material\u003c\/strong\u003e: Brass\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: BT-1428-250-AS\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51694413873458,"sku":"BT-1428-250-AS","price":1018.66,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/69eeaf92ad4ff006dc44b49c1062961d.jpg?v=1788324269","url":"https:\/\/voomisupply.com\/products\/value-collection-bt-1428-250-as-set-screw-1-4-28","provider":"Voomi Supply","version":"1.0","type":"link"}