{"product_id":"value-collection-211133pr-flat-socket-cap-screw-1-4-28","title":"Value Collection 211133PR Flat Socket Cap Screw 1\/4-28","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VALUE COLLECTION 211133PR is a flat socket cap screw designed for flush or countersunk fastening applications in mechanical assemblies. It features a 1\/4-28 UNF thread with a 1-1\/2 inch overall length, fully threaded shank, and an 82-degree flat head driven by a 5\/32 inch hex socket. The alloy steel construction with black oxide finish provides resistance to corrosion and reduces light reflection in precision applications. This fastener meets ASME\/ANSI B18.3 and ASTM F835 standards, making it suitable for demanding structural and mechanical use. Machinists, millwrights, and maintenance technicians commonly install this type of screw.\u003c\/p\u003e\n\u003cp\u003eThis flat socket cap screw is used in applications where a low-profile or countersunk head is required to sit flush with or below the mating surface. Common applications include machine tool assemblies, fixtures, jigs, mechanical enclosures, and equipment frames. The fine 1\/4-28 UNF thread pitch provides stronger thread engagement and better resistance to vibration loosening compared to coarse-thread equivalents, making it well suited for precision machinery and tight-tolerance assemblies.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e82-degree flat head profile seats flush in standard countersunk holes\u003c\/li\u003e\n  \u003cli\u003e5\/32 inch hex socket drive for secure torque application with an Allen key or hex bit\u003c\/li\u003e\n  \u003cli\u003e1\/4-28 UNF fine thread for improved vibration resistance and thread engagement\u003c\/li\u003e\n  \u003cli\u003eFully threaded 1-1\/2 inch shank provides maximum thread engagement across the full length\u003c\/li\u003e\n  \u003cli\u003eAlloy steel construction meets ASTM F835 for high-strength fastener applications\u003c\/li\u003e\n  \u003cli\u003eBlack oxide finish reduces surface corrosion and minimizes light reflection\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement or standard fastener for mechanical assemblies requiring a 1\/4-28 UNF flat socket cap screw with an 82-degree countersink angle and 5\/32 inch hex drive, conforming to ASME\/ANSI B18.3.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by machinists, millwrights, or maintenance technicians using a 5\/32 inch hex key or hex socket bit. Ensure the mating material is drilled and countersunk to the correct 82-degree angle before installation. De-energize or lock out equipment per applicable OSHA lockout\/tagout procedures before fastener replacement in live machinery. Do not exceed the rated mechanical properties of the fastener by applying impact tools without appropriate torque control.\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\u003eLength\u003c\/strong\u003e: 1-1\/2 inches (overall length)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHead Type\u003c\/strong\u003e: 82 degree Flat\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: 5\/32 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFull or Partial Threading\u003c\/strong\u003e: Fully Threaded\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Alloy Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinish\/Coating\u003c\/strong\u003e: Black Oxide\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSystem of Measurement\u003c\/strong\u003e: Inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFastener Standard\u003c\/strong\u003e: ASME\/ANSI B18.3; ASTM F835\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.02 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: 211133PR\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51723971297586,"sku":"211133PR","price":3096.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/d2eb1df969db9bb81993a63e09b38fbd.jpg?v=1788610860","url":"https:\/\/voomisupply.com\/products\/value-collection-211133pr-flat-socket-cap-screw-1-4-28","provider":"Voomi Supply","version":"1.0","type":"link"}