Value Collection MP72166 Hex Socket Cap Screw 3/8-16 Unc

Product Description

The VALUE COLLECTION MP72166 is a hex socket cap screw designed for secure, high-torque fastening in mechanical and structural assemblies. Sized at 3/8-16 UNC with a 2-inch length under head, this fastener is fully threaded and driven with a 5/16-inch hex key. Constructed from alloy steel with a black oxide coating, it delivers solid tensile strength and basic corrosion resistance for indoor and light-duty industrial applications. Sold in a pack of 10, this fastener meets ASME B18.3 and ASTM A574 standards. It is commonly installed by machinists, millwrights, maintenance technicians, and mechanical contractors.

This screw is suited for general mechanical assemblies, equipment mounting, jigs and fixtures, and maintenance and repair operations where a recessed hex drive is required. The 3/8-16 UNC thread form is a standard coarse-thread pitch widely used across industrial equipment, pump housings, brackets, and machine frames. The black oxide finish provides a low-reflectance appearance and mild surface protection in dry or lightly oiled environments.

Key Features

• Thread size 3/8-16 UNC coarse thread for broad hardware compatibility
• 2-inch length under head, fully threaded for maximum thread engagement
• 5/16-inch hex socket drive for high-torque installation with standard Allen keys
• Alloy steel construction meets ASTM A574 mechanical requirements
• Black oxide coating provides mild corrosion resistance and low-glare finish
• Conforms to ASME B18.3 socket cap screw dimensional standards

Compatibility

Designed as a standard 3/8-16 UNC hex socket cap screw for use in any application requiring ASME B18.3 and ASTM A574 compliant fasteners in that thread size and length.

Installation Notes

Installation is performed with a 5/16-inch hex key or Allen driver. Ensure mating threads are clean and free of debris before driving. Apply thread lubricant or anti-seize compound as required by the application to achieve accurate clamp load. Black oxide fasteners are not recommended for outdoor or high-humidity environments without additional corrosion protection.