{"product_id":"value-collection-581173pr-hex-socket-cap-screw-5-40-unc","title":"Value Collection 581173PR Hex Socket Cap Screw 5-40 Unc","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VALUE COLLECTION 581173PR is a hex socket cap screw designed for precise, high-torque fastening in mechanical assemblies and structural applications. It features a 5-40 UNC thread size with 1 inch of length under the head and is partially threaded for controlled engagement. The drive is a 3\/32 inch internal hex (Allen) socket, requiring a standard hex key for installation and removal. Constructed from alloy steel with a black oxide finish coating, this screw delivers solid mechanical strength and moderate corrosion resistance in indoor and light-service environments. Licensed mechanics, machinists, and maintenance technicians typically select this fastener for equipment assemblies, fixtures, and precision hardware applications.\u003c\/p\u003e\n\u003cp\u003eThis screw is suited for light mechanical assemblies, instrument panels, machine components, and fixture work where a low-profile socket cap head and controlled clamping force are required. The 5-40 UNC thread is a fine-pitch unified coarse thread commonly found in small-diameter fastener applications across general manufacturing, electronics enclosures, and precision tooling. The partial threading allows for a smooth shank section that aids in alignment and shear loading within the assembly.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e5-40 UNC thread size with 1 inch length under head for reliable thread engagement\u003c\/li\u003e\n  \u003cli\u003ePartially threaded shank for improved alignment and shear strength\u003c\/li\u003e\n  \u003cli\u003e3\/32 inch internal hex drive for use with standard hex keys or Allen wrenches\u003c\/li\u003e\n  \u003cli\u003eAlloy steel construction provides high tensile strength for the fastener class\u003c\/li\u003e\n  \u003cli\u003eBlack oxide finish coating adds mild corrosion resistance and reduces light reflection\u003c\/li\u003e\n  \u003cli\u003eMeets ASME\/ANSI B18.3 and ASTM A574 fastener standards\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a standard 5-40 UNC hex socket cap screw suitable for tapped holes conforming to ASME\/ANSI B18.3 specifications in mechanical assemblies, fixtures, and precision equipment applications.\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 Allen driver. Ensure the mating tapped hole is clean and free of debris before driving the screw. Do not exceed the design clamping load for the 5-40 thread class; overtightening alloy steel socket cap screws in soft or thin materials can strip threads or damage components. Follow applicable machine design standards and equipment service documentation for torque guidance specific to the assembly.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 5-40 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\u003eThreading\u003c\/strong\u003e: Partially Threaded\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrive Type\u003c\/strong\u003e: Hex (Internal)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrive Size\u003c\/strong\u003e: 3\/32 inch\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\u003eFastener Standard\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\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: 581173PR\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51698935595314,"sku":"581173PR","price":2815.96,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/a553d6f5e3b7a1e9b4b1a1a5276c6df4.jpg?v=1788370049","url":"https:\/\/voomisupply.com\/products\/value-collection-581173pr-hex-socket-cap-screw-5-40-unc","provider":"Voomi Supply","version":"1.0","type":"link"}