{"product_id":"value-collection-581102pr-hex-socket-cap-screw-3-56-unf","title":"Value Collection 581102PR Hex Socket Cap Screw 3-56 Unf","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe VALUE COLLECTION 581102PR is a hex socket cap screw designed for precision fastening applications requiring a compact, high-strength connection. Manufactured from alloy steel with a black oxide finish, this screw meets ASME\/ANSI B18.3 and ASTM A574 standards. It features a 3-56 UNF thread size, a 1\/2 inch length under head, and a 5\/64 inch hex drive. The fully threaded shank maximizes thread engagement across the full usable length. This fastener is suited for mechanical assemblies, instrument panels, and small-component fixturing where a low-profile socket head is required.\u003c\/p\u003e\u003cp\u003eThis screw is commonly used in light mechanical assemblies, precision instruments, electronics enclosures, and industrial equipment where a fine-thread, small-diameter fastener is needed. The black oxide coating provides mild corrosion resistance and reduces light reflection, making it appropriate for controlled indoor environments. The 3-56 UNF thread is a fine-pitch designation suited for thin materials or applications where vibration resistance and close thread engagement are priorities.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e3-56 UNF fully threaded alloy steel construction for high tensile strength in a small form factor\u003c\/li\u003e\n\u003cli\u003eBlack oxide finish provides mild corrosion resistance and a low-reflectance appearance\u003c\/li\u003e\n\u003cli\u003e5\/64 inch hex socket drive for use with standard hex keys or Allen drivers\u003c\/li\u003e\n\u003cli\u003e1\/2 inch length under head for use in shallow or thin-material assemblies\u003c\/li\u003e\n\u003cli\u003eMeets ASME\/ANSI B18.3 and ASTM A574 dimensional and mechanical standards\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement or standard-stock hex socket cap screw for any assembly specifying a 3-56 UNF, 1\/2 inch length under head, alloy steel socket cap screw per ASME\/ANSI B18.3.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a qualified mechanic or assembler using a properly sized 5\/64 inch hex key or driver to avoid cam-out and fastener damage. Ensure the mating threaded hole is clean and free of debris before assembly. Apply thread-locking compound if the application involves vibration. Do not exceed the rated torque range for a 3-56 alloy steel fastener as specified in ASME B18.3 guidelines.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 3-56 UNF\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength Under Head\u003c\/strong\u003e: 1\/2 inch\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\/64 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThreading\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\u003c\/strong\u003e: Black Oxide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandards\u003c\/strong\u003e: ASME\/ANSI B18.3, ASTM A574\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: 581102PR\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51715289481522,"sku":"581102PR","price":3440.08,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/102e68fbb1113de357b6a18c6e5393eb.jpg?v=1788511620","url":"https:\/\/voomisupply.com\/products\/value-collection-581102pr-hex-socket-cap-screw-3-56-unf","provider":"Voomi Supply","version":"1.0","type":"link"}