{"product_id":"value-collection-592281pr-hex-socket-cap-screw-1-4-28-unf","title":"Value Collection 592281PR Hex Socket Cap Screw 1\/4-28 Unf","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VALUE COLLECTION 592281PR is a partially threaded hex socket cap screw designed for precision fastening in structural and mechanical assemblies. It features a 1\/4-28 UNF thread size with a 2-1\/4 inch length under the head and a 3\/16 inch hex drive. Manufactured from 18-8 austenitic stainless steel (Austenitic Grade A2), this fastener offers corrosion resistance suited to both indoor and outdoor service environments. It conforms to ASME\/ANSI B18.3 and ASTM F837 standards. Maintenance technicians, millwrights, and general contractors use this type of screw where a flush or low-profile head is required alongside a reliable socket drive.\u003c\/p\u003e\n\u003cp\u003eThis screw is appropriate for light mechanical assemblies, machine components, and fabrication work requiring a fine-thread UNF fastener. The 1\/4-28 UNF thread pitch provides greater thread engagement per inch than coarse-thread alternatives, making it well-suited for thin-walled materials or applications where vibration resistance is a priority. The partial threading allows the unthreaded shank to align mating components before the threads engage. This fastener is commonly used in HVAC equipment panels, electrical enclosures, plumbing fixture frames, and general industrial fabrication.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e1\/4-28 UNF fine thread for increased vibration resistance and pull-out strength in thin materials\u003c\/li\u003e\n  \u003cli\u003ePartially threaded shank aids component alignment during assembly\u003c\/li\u003e\n  \u003cli\u003e18-8 austenitic stainless steel (Grade A2) provides corrosion resistance for wet or chemically exposed environments\u003c\/li\u003e\n  \u003cli\u003e3\/16 inch hex socket drive compatible with standard allen keys and hex bit drivers\u003c\/li\u003e\n  \u003cli\u003eMeets ASME\/ANSI B18.3 and ASTM F837 fastener standards\u003c\/li\u003e\n  \u003cli\u003e2-1\/4 inch length under head suits medium-depth fastening applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement or general-use fastener for assemblies requiring a 1\/4-28 UNF partially threaded hex socket cap screw in stainless steel.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed with a 3\/16 inch hex key or hex bit driver. Ensure mating threads are clean and free of debris before driving the screw. Do not exceed the design torque range for 1\/4-28 stainless steel fasteners, as over-torquing can cause galling on stainless threads. Apply an anti-seize compound where stainless-to-stainless thread contact is present to reduce galling risk.\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 UNF\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength Under Head\u003c\/strong\u003e: 2-1\/4 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrive Type\u003c\/strong\u003e: Hex Socket\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrive Size\u003c\/strong\u003e: 3\/16 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFull or Partial Threading\u003c\/strong\u003e: Partially Threaded\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Stainless Steel, 18-8 Austenitic Grade A2\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFastener Standard\u003c\/strong\u003e: ASME\/ANSI B18.3; ASTM F837\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: 592281PR\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51707772961074,"sku":"592281PR","price":9310.35,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/0c9a2a0009891924a2ca223b5da382b3_e2216825-f6ea-44b9-8e08-028fa41ea98b.jpg?v=1788442074","url":"https:\/\/voomisupply.com\/products\/value-collection-592281pr-hex-socket-cap-screw-1-4-28-unf","provider":"Voomi Supply","version":"1.0","type":"link"}