Value Collection MP72158 Hex Socket Cap Screw 3/8-16 Unc

Product Description

The Value Collection MP72158 is a fully threaded hex socket cap screw designed for secure, high-torque fastening in demanding mechanical and structural assemblies. It features a 3/8-16 UNC thread size and a 1-inch length under head, making it well-suited for medium-duty bolted connections where a flush or low-profile socket-drive fastener is required. Manufactured from alloy steel with a black oxide finish, this screw offers solid mechanical strength and moderate corrosion resistance. Drive engagement is achieved through a 5/16-inch hex socket. This screw meets ASME B18.3 and ASTM A574 standards. Sold in packs of 25.

This cap screw is used across a wide range of trade and industrial applications including HVAC equipment assemblies, electrical enclosures, plumbing fixture mounting, and general mechanical fabrication. It is appropriate for both shop and field use wherever a recessed hex-drive fastener is specified. The black oxide coating reduces surface reflectivity and provides light corrosion protection in dry or mildly humid indoor environments. Installation requires a 5/16-inch hex key or socket bit driver.

Key Features

• 3/8-16 UNC thread form for standard unified coarse-thread engagement
• Fully threaded along the entire 1-inch length under head
• 5/16-inch internal hex drive for high-torque socket wrench or Allen key installation
• Alloy steel construction meets ASTM A574 mechanical requirements
• Black oxide finish provides light corrosion resistance and low-glare appearance
• Conforms to ASME B18.3 dimensional standard for socket head cap screws

Compatibility

Designed as a standard 3/8-16 UNC hex socket cap screw suitable for general mechanical assemblies, equipment panels, and structural connections that specify an ASME B18.3 socket head cap screw.

Installation Notes

Installation is typically performed by a mechanic, millwright, or licensed trade professional using a 5/16-inch hex key, T-handle, or socket bit. Ensure the mating tapped hole is clean and free of debris before threading. De-energize all equipment and relieve any system pressure before removing or replacing fasteners in live assemblies. Do not exceed the rated torque range for 3/8-16 alloy steel cap screws as specified by the applicable equipment manufacturer or applicable code.