{"product_id":"value-collection-40877-1-button-socket-cap-screw-1-4-20","title":"Value Collection -40877-1 Button Socket Cap Screw 1\/4-20","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VALUE COLLECTION -40877-1 is a fully threaded button socket cap screw designed for fastening applications that require a low-profile head and reliable clamping strength. Sized at 1\/4-20 UNC thread with a 7\/8-inch length under the head, this fastener is driven by a 5\/32-inch hex socket. It is manufactured from alloy steel and finished with black oxide coating for corrosion resistance and a consistent matte appearance. Head height measures 0.132 inches. Hardness is rated at 36-43 HRC, meeting ANSI\/ASME B18.3 and ASTM F835 standards. This screw is suited for mechanical assemblies, fixtures, and equipment where a flush or recessed fastener profile is required.\u003c\/p\u003e\n\u003cp\u003eThis button socket cap screw fits a wide range of general industrial, mechanical, and fabrication applications. The low-profile domed button head is commonly used in panel assemblies, guards, brackets, and machine components where a standard hex cap head would protrude too far or interfere with adjacent parts. It is appropriate for both light industrial and commercial installations. The right-hand, class 3A thread fit ensures consistent engagement in standard tapped holes. Machinists, maintenance technicians, and fabricators typically install this type of fastener in both new builds and repair work.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e1\/4-20 UNC fully threaded, 7\/8-inch length under head\u003c\/li\u003e\n  \u003cli\u003eLow-profile button head at 0.132 inches tall for clearance-sensitive assemblies\u003c\/li\u003e\n  \u003cli\u003e5\/32-inch hex socket drive for standard hex key or socket wrench installation\u003c\/li\u003e\n  \u003cli\u003eAlloy steel construction with 36-43 HRC hardness rating\u003c\/li\u003e\n  \u003cli\u003eBlack oxide finish for moderate corrosion resistance and reduced light reflection\u003c\/li\u003e\n  \u003cli\u003eMeets ANSI\/ASME B18.3 and ASTM F835 standards\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a standard 1\/4-20 UNC button socket cap screw for use in tapped holes or with compatible nuts in general mechanical and industrial assemblies.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstall using a calibrated 5\/32-inch hex key or hex socket bit. Ensure the mating tapped hole or nut is clean and free of debris before driving the fastener. Power down or de-energize any equipment before performing fastener installation or removal in electrical or mechanical enclosures. Follow applicable ASME or facility maintenance standards for fastener seating and inspection.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 1\/4-20\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: UNC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Fit Class\u003c\/strong\u003e: 3A\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength Under Head\u003c\/strong\u003e: 7\/8 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHead Type\u003c\/strong\u003e: Button\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHead Height\u003c\/strong\u003e: 0.132 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: 5\/32 inches\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\u003eHardness\u003c\/strong\u003e: 36-43 HRC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFastener Standard\u003c\/strong\u003e: ANSI\/ASME B18.3, ASTM F835\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: -40877-1\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51719165346098,"sku":"-40877-1","price":32.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/846c124c9d6cbc5f2bb01637e5180348.jpg?v=1788557856","url":"https:\/\/voomisupply.com\/products\/value-collection-40877-1-button-socket-cap-screw-1-4-20","provider":"Voomi Supply","version":"1.0","type":"link"}