{"product_id":"value-collection-mp72178-hex-socket-cap-screw-3-8-16-unc","title":"Value Collection MP72178 Hex Socket Cap Screw 3\/8-16 Unc","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VALUE COLLECTION MP72178 is a partially threaded hex socket cap screw designed for secure mechanical fastening in industrial and trade applications. It features a 3\/8-16 UNC thread size and measures 3.5 inches under the head, making it suited for medium-depth fastening tasks. The screw is driven by a 5\/16-inch hex (Allen) key. Constructed from alloy steel with a black oxide finish, it meets ASME B18.3 and ASTM A574 standards, providing reliable tensile strength and basic corrosion resistance in controlled environments. This fastener comes in a pack of 5.\u003c\/p\u003e\n\u003cp\u003eThis screw is commonly used in mechanical assemblies, equipment mounting, machine frames, and structural fixture work where a recessed-drive, high-strength fastener is required. The 3\/8-16 UNC thread is a widely used coarse-thread standard, compatible with tapped holes and threaded inserts found throughout HVAC equipment frames, pump housings, electrical enclosures, and general industrial machinery. Partial threading provides stronger clamping force in through-bolt applications.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e3\/8-16 UNC coarse thread for broad compatibility with standard tapped holes\u003c\/li\u003e\n  \u003cli\u003e3.5-inch length under head suits medium-depth fastening applications\u003c\/li\u003e\n  \u003cli\u003e5\/16-inch hex socket drive for use with standard Allen keys or hex bit drivers\u003c\/li\u003e\n  \u003cli\u003eAlloy steel construction meets ASTM A574 high-strength fastener specification\u003c\/li\u003e\n  \u003cli\u003eBlack oxide finish provides mild corrosion resistance and reduces glare\u003c\/li\u003e\n  \u003cli\u003ePartial threading delivers improved clamping force in through-bolt configurations\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a standard 3\/8-16 UNC hex socket cap screw suitable for use in any application requiring an ASME B18.3 or ASTM A574 compliant fastener with a 5\/16-inch hex drive.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is typically performed by mechanics, millwrights, HVAC technicians, or plumbers during equipment assembly or service. De-energize and isolate any equipment before working on fastened assemblies. Use a properly sized 5\/16-inch hex key or bit driver to avoid rounding the socket. Apply thread-locking compound where vibration may loosen the fastener over time.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 3\/8-16 UNC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength Under Head\u003c\/strong\u003e: 3.5 inches\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\/16 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThreading\u003c\/strong\u003e: Partial\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 B18.3 \/ ASTM A574\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 5\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: MP72178\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51716132241714,"sku":"MP72178","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/fddc3dc446bb065f2510138af820476b.jpg?v=1788522190","url":"https:\/\/voomisupply.com\/products\/value-collection-mp72178-hex-socket-cap-screw-3-8-16-unc","provider":"Voomi Supply","version":"1.0","type":"link"}