{"product_id":"value-collection-353-5404-01-button-socket-cap-screw-4-40","title":"Value Collection 353-5404-01 Button Socket Cap Screw 4-40","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VALUE COLLECTION 353-5404-01 is a 4-40 x 1\/4 inch button socket cap screw machined from alloy steel and finished with a black oxide coating. The button head profile provides a low-profile bearing surface suited for applications where clearance is limited. Drive engagement is via a Torx Plus IP8 recess, which reduces cam-out compared to hex socket drives. The fastener is fully threaded to ANSI\/ASME B18.3 and ASTM F835 standards, with a 3A thread fit class and right-hand UNRC thread form. Hardness is rated at 39 to 44 HRC. This screw is used by machinists, assembly technicians, and maintenance trades across industrial and precision mechanical applications.\u003c\/p\u003e\n\u003cp\u003eThis fastener is suited for light-duty mechanical assemblies, enclosures, fixtures, and panels where a low-profile head and positive Torx Plus drive engagement are required. The black oxide finish provides mild corrosion resistance and reduces light reflection, making it appropriate for tooling, instrument panels, and equipment housings. The 4-40 thread size is common in small mechanical assemblies, electronics enclosures, and precision equipment. This item is sold individually but carries a minimum order quantity of 100 units.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eTorx Plus IP8 drive recess reduces cam-out and improves torque transfer\u003c\/li\u003e\n  \u003cli\u003eLow-profile button head suits clearance-restricted assemblies\u003c\/li\u003e\n  \u003cli\u003eAlloy steel construction with 39 to 44 HRC hardness rating\u003c\/li\u003e\n  \u003cli\u003eBlack oxide finish provides mild corrosion resistance and low reflectivity\u003c\/li\u003e\n  \u003cli\u003eFully threaded 3A UNRC right-hand thread for consistent fit and engagement\u003c\/li\u003e\n  \u003cli\u003eMeets ANSI\/ASME B18.3 and ASTM F835 fastener standards\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a standard 4-40 UNC button socket cap screw compatible with tapped holes conforming to UNRC 3A thread specifications in light mechanical, electronic, and precision equipment assemblies.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by machinists or assembly technicians using a Torx Plus IP8 driver or bit. Verify the mating tapped hole is clean, undamaged, and cut to UNRC 3A specifications before installation. Do not use a standard Torx T8 driver in place of the IP8 recess, as this can damage the drive recess or reduce torque capacity. Power down and de-energize any equipment before accessing fasteners on live assemblies or enclosures.\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: 0.25 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: Torx Plus\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTorx Drive Size\u003c\/strong\u003e: IP8 \/ TP8\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHead Height\u003c\/strong\u003e: 0.059 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: 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\u003eHardness\u003c\/strong\u003e: 39 to 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: 0.01 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: 353-5404-01\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51712052855090,"sku":"353-5404-01","price":1549.8,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/ab6d52d98d24bb7f4932487be82a1bac.jpg?v=1788483074","url":"https:\/\/voomisupply.com\/products\/value-collection-353-5404-01-button-socket-cap-screw-4-40","provider":"Voomi Supply","version":"1.0","type":"link"}