{"product_id":"value-collection-40878-button-socket-cap-screw-1-4-20x1","title":"Value Collection 40878 Button Socket Cap Screw 1\/4-20x1","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe VALUE COLLECTION 40878 is a button socket cap screw designed for fastening applications that require a low-profile head and a secure hex socket drive. Sized at 1\/4-20 x 1 inch with a fully threaded shank, this screw is machined from alloy steel and finished with a black oxide coating that provides mild corrosion resistance and a matte black appearance. The 5\/32-inch hex socket drive accepts a standard hex key for installation and removal. Hardness is rated at 36-43 HRC, meeting ANSI\/ASME B18.3 and ASTM F835 standards. Licensed tradespeople and maintenance machinists use this fastener where a standard hex cap screw head would interfere with surrounding components.\u003c\/p\u003e\u003cp\u003eThis button socket cap screw is suited for machine assembly, tooling fixtures, guards, panels, and general mechanical fabrication where a flush or near-flush head profile is required. The UNC thread standard and 3A thread fit class make it compatible with standard tapped holes in ferrous and non-ferrous metal components. It is commonly used in industrial maintenance, automation equipment, and structural fabrication. The black oxide finish also reduces light reflection in optical or precision equipment enclosures.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eButton head profile reduces interference with adjacent components and mating surfaces\u003c\/li\u003e\n\u003cli\u003e5\/32-inch hex socket drive for use with standard hex keys or ball-end drivers\u003c\/li\u003e\n\u003cli\u003eAlloy steel construction rated at 36-43 HRC hardness for high-stress fastening applications\u003c\/li\u003e\n\u003cli\u003eBlack oxide finish provides mild corrosion resistance and low-reflectance appearance\u003c\/li\u003e\n\u003cli\u003eFully threaded shank with UNC 1\/4-20 thread and 3A fit class for accurate thread engagement\u003c\/li\u003e\n\u003cli\u003eMeets ANSI\/ASME B18.3 and ASTM F835 fastener standards\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement or direct-use fastener for any application requiring a 1\/4-20 UNC button socket cap screw per ANSI\/ASME B18.3 specifications.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation requires a 5\/32-inch hex key or ball-end driver. Ensure the mating tapped hole is clean and free of debris before threading. Power down or de-energize any equipment before disassembling fastened assemblies on live machinery. Follow applicable torque guidance from the equipment manufacturer or applicable mechanical codes when determining final torque.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 1\/4-20 UNC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength Under Head\u003c\/strong\u003e: 1 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHead Type\u003c\/strong\u003e: Button\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 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHead Height\u003c\/strong\u003e: 0.132 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Alloy Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish\u003c\/strong\u003e: Black Oxide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: UNC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Fit Class\u003c\/strong\u003e: 3A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHardness\u003c\/strong\u003e: 36-43 HRC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFastener Standard\u003c\/strong\u003e: ANSI\/ASME B18.3 and ASTM F835\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.01 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\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: 40878\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51715933438258,"sku":"40878","price":32.08,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/f287a4cd89b71b16b8724108af2236a0.jpg?v=1788519897","url":"https:\/\/voomisupply.com\/products\/value-collection-40878-button-socket-cap-screw-1-4-20x1","provider":"Voomi Supply","version":"1.0","type":"link"}