{"product_id":"value-collection-363-5406-01-button-socket-cap-screw-4-40","title":"Value Collection 363-5406-01 Button Socket Cap Screw 4-40","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VALUE COLLECTION 363-5406-01 is a fully threaded button socket cap screw designed for applications requiring a low-profile head with high clamping strength. Sized 4-40 with a 3\/8 inch length under head, it features a 1\/16 inch hex socket drive and a button-style head with a head height of 0.059 inches. Manufactured from alloy steel with a black oxide finish, this fastener meets ANSI\/ASME B18.3 and ASTM F835 standards. Hardness is rated 39-44 HRC, making it suitable for moderate-to-high strength fastening requirements in metal assemblies and enclosures.\u003c\/p\u003e\n\u003cp\u003eThis screw is used in light mechanical assemblies, electronic enclosures, panels, and equipment housings where a flush or low-profile fastener head is required. The black oxide coating provides mild corrosion resistance and reduces light reflection, making it a common choice in instrumentation, HVAC control panels, and similar trade applications. The right-hand thread with a Class 3A fit ensures close tolerance engagement in tapped holes.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e4-40 thread size, fully threaded, 3\/8 inch length under head\u003c\/li\u003e\n  \u003cli\u003eButton head profile with 0.059 inch head height for low-clearance installations\u003c\/li\u003e\n  \u003cli\u003e1\/16 inch hex socket drive for Allen wrench or hex key installation\u003c\/li\u003e\n  \u003cli\u003eAlloy steel construction with 39-44 HRC hardness rating\u003c\/li\u003e\n  \u003cli\u003eBlack oxide finish for mild corrosion resistance and reduced reflectivity\u003c\/li\u003e\n  \u003cli\u003eMeets ANSI\/ASME B18.3 and ASTM F835 standards, Class 3A thread fit\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 use in any application requiring a 4-40 fully threaded button socket cap screw with a 1\/16 inch hex drive.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed with a 1\/16 inch hex key or Allen wrench. Ensure the mating tapped hole conforms to UNRC thread standards for proper Class 3A fit engagement. Power down and de-energize any electrical enclosure or control panel before fastener service. Do not exceed the rated hardness application range by substituting this fastener in structural load-bearing joints not designed for this size class.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 4-40\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength Under Head\u003c\/strong\u003e: 3\/8 inches\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: 1\/16 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHead Height\u003c\/strong\u003e: 0.059 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: UNRC\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\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\u003eHardness\u003c\/strong\u003e: 39-44 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: 0.002 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: 363-5406-01\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51715842638130,"sku":"363-5406-01","price":1534.73,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/d22f77e725537bf1463951f84100f5a2.jpg?v=1788518963","url":"https:\/\/voomisupply.com\/products\/value-collection-363-5406-01-button-socket-cap-screw-4-40","provider":"Voomi Supply","version":"1.0","type":"link"}