{"product_id":"value-collection-581123pr-hex-socket-cap-screw-4-40-unc","title":"Value Collection 581123PR Hex Socket Cap Screw 4-40 Unc","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VALUE COLLECTION 581123PR is a 4-40 UNC hex socket cap screw designed for precision fastening in mechanical assemblies, fixtures, and equipment where a low-profile, high-strength fastener is required. Manufactured from alloy steel with a black oxide finish, this screw offers improved corrosion resistance over bare steel and reduces light reflection in finished assemblies. The 3\/32 inch hex drive allows use with standard Allen keys and hex drivers. With 1 inch of length under the head and partial threading, it is suited for clamping applications where a smooth shank provides load bearing along the grip length. Licensed machinists, maintenance technicians, and mechanical assemblers are the typical end users for this fastener.\u003c\/p\u003e\n\u003cp\u003eThis screw is commonly used in light machinery, electronic enclosures, tooling fixtures, and precision mechanical equipment where the 4-40 UNC thread size is called out. The partially threaded shank makes it appropriate for bolted joints requiring a defined grip length. It conforms to ASME\/ANSI B18.3 and ASTM A574 standards, making it suitable for applications where dimensional and mechanical property compliance is specified. Minimum order quantity is 100 pieces per order.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e4-40 UNC thread size for standard fine-pitch light fastening applications\u003c\/li\u003e\n  \u003cli\u003eAlloy steel construction meets ASTM A574 mechanical property requirements\u003c\/li\u003e\n  \u003cli\u003eBlack oxide finish provides mild corrosion resistance and a non-reflective surface\u003c\/li\u003e\n  \u003cli\u003ePartial threading allows smooth shank to act as a bearing surface in bolted joints\u003c\/li\u003e\n  \u003cli\u003e3\/32 inch hex socket drive compatible with standard Allen keys and hex bit drivers\u003c\/li\u003e\n  \u003cli\u003eConforms to ASME\/ANSI B18.3 dimensional standard\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style and general-use replacement or specification fastener for any application calling out a 4-40 UNC hex socket cap screw with 1 inch length under head, conforming to ASME\/ANSI B18.3 and ASTM A574.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by machinists, maintenance technicians, or mechanical assemblers using a 3\/32 inch hex key or hex bit driver. Ensure mating threads are clean and free of debris before installation. Do not overtighten, as the 4-40 thread size has a low torque capacity and is susceptible to thread stripping. Follow equipment manufacturer torque specifications where provided.\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 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\u003eDrive Type\u003c\/strong\u003e: Hex Socket\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrive Size\u003c\/strong\u003e: 3\/32 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThreading\u003c\/strong\u003e: Partially 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\u003eFastener Standard\u003c\/strong\u003e: ASME\/ANSI B18.3, ASTM A574\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.00286 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMinimum Order Quantity\u003c\/strong\u003e: 100 pieces\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: 581123PR\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51704108319026,"sku":"581123PR","price":2479.42,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/9d7aa2d946d6e5dd4d27126758786c2b.jpg?v=1788420649","url":"https:\/\/voomisupply.com\/products\/value-collection-581123pr-hex-socket-cap-screw-4-40-unc","provider":"Voomi Supply","version":"1.0","type":"link"}