Value Collection MP72116 Hex Socket Cap Screw 1/4-20 Unc

Product Description

The VALUE COLLECTION MP72116 is a 1/4-20 UNC hex socket cap screw designed for secure fastening in mechanical assemblies, fixtures, and structural connections. The screw measures 3 inches in length under the head and is driven by a 3/16-inch hex key. Constructed from alloy steel with a black oxide finish, it provides good corrosion resistance and a low-reflectance appearance. The partial threading design concentrates clamping force at the joint interface. This fastener meets ASME B18.3 and ASTM A574 standards, making it suitable for demanding mechanical and industrial applications. Each package contains 25 screws.

This screw is used across a wide range of trade and industrial applications including HVAC equipment assembly, electrical enclosure mounting, plumbing fixture brackets, mechanical panels, and general machine assembly. The 1/4-20 UNC thread is one of the most common inch-series fastener sizes in North American trade work. The black oxide coating helps reduce galling and minor surface corrosion in indoor or sheltered environments. Suitable for use by HVAC technicians, electricians, plumbers, and millwrights working with ferrous and mixed-material assemblies.

Key Features

• 1/4-20 UNC thread for broad compatibility with standard inch-series tapped holes
• 3 inches length under head with partial threading for strong clamping grip
• 3/16-inch hex socket drive for use with standard Allen keys or hex bits
• Alloy steel construction meets ASTM A574 for high tensile strength
• Black oxide finish provides mild corrosion resistance and low-glare surface
• Conforms to ASME B18.3 dimensional standards

Compatibility

Designed as a standard 1/4-20 UNC socket cap screw for use in any application requiring an ASME B18.3 compliant inch-series hex socket fastener in alloy steel.

Installation Notes

Install using a 3/16-inch hex key or matching hex bit driver. Ensure the mating tapped hole is clean and free of debris before threading to avoid cross-threading. Always torque fasteners to values specified by the equipment manufacturer or applicable mechanical code. Do not exceed rated tensile load for the fastener grade when used in structural or load-bearing assemblies.