Value Collection MP72156 Hex Socket Cap Screw 3/8-16 Unc

Product Description

The VALUE COLLECTION MP72156 is a fully threaded hex socket cap screw designed for precision fastening in structural and mechanical assemblies. Sized at 3/8-16 UNC with a 7/8 inch length under head, this fastener accepts a 5/16 inch hex drive for reliable torque transfer. The alloy steel construction with a black oxide finish provides a strong, corrosion-resistant option suited to industrial, HVAC equipment, and general mechanical applications. Each package contains 25 screws. This fastener meets ASME B18.3 and ASTM A574 standards, making it appropriate for engineered and code-referenced assemblies where material and dimensional compliance matter.

This screw is used in a wide range of trade applications including HVAC equipment mounting, electrical enclosure assembly, plumbing fixture installation, and general mechanical fabrication. The UNC thread form is the standard coarse-thread series, compatible with standard tapped holes and hex socket tooling across residential and commercial jobsite environments. The black oxide finish helps reduce light reflection and offers mild corrosion resistance in dry or lightly humid indoor conditions.

Key Features

• 3/8-16 UNC fully threaded for standard coarse-thread tapped hole engagement
• 7/8 inch length under head fits shallow-profile fastening applications
• 5/16 inch hex socket drive for use with standard Allen keys or hex bit drivers
• Alloy steel construction meets ASTM A574 mechanical property requirements
• Black oxide finish provides mild corrosion resistance and reduced surface reflectivity
• Meets ASME B18.3 dimensional standard for socket cap screws

Compatibility

Designed as an OEM-style replacement or service fastener for any assembly specifying a 3/8-16 UNC fully threaded hex socket cap screw with a 7/8 inch length under head, conforming to ASME B18.3 and ASTM A574.

Installation Notes

Installation is performed using a 5/16 inch hex key or hex bit driver. Verify that the mating tapped hole is clean and free of debris before driving the fastener. Power down or de-energize any equipment before accessing fastener locations on electrical or mechanical assemblies. Follow applicable equipment manufacturer torque specifications and relevant codes such as the NEC or IFGC where fastener compliance is required.