Value Collection MP72100 Hex Socket Cap Screw 1/4-20 Unc 50pk

Product Description

The VALUE COLLECTION MP72100 is a hex socket cap screw designed for secure, high-torque fastening in mechanical and structural assemblies. Sized at 1/4-20 UNC with a 1-inch length under head and fully threaded shank, this fastener accepts a 3/16-inch hex drive. Constructed from alloy steel with a black oxide finish, it delivers solid tensile strength while the coating provides moderate corrosion resistance and reduced glare. Meets ASME B18.3 and ASTM A574 standards. Sold in a package of 50.

This screw is a standard fastener used across a wide range of trade and industrial applications, including HVAC equipment assembly, electrical enclosure mounting, plumbing fixture brackets, and general mechanical fabrication. The 1/4-20 UNC thread is one of the most common coarse-thread sizes in North American trade work, making this a practical bulk-stock item for service vans, shops, and job sites where socket cap screws are frequently needed.

Key Features

• 1/4-20 UNC coarse thread for broad compatibility with standard tapped holes
• 1-inch length under head, fully threaded shank for maximum thread engagement
• 3/16-inch hex socket drive for use with standard Allen keys or hex bit drivers
• Alloy steel construction meets ASTM A574 tensile strength requirements
• Black oxide finish provides mild corrosion resistance and low-reflectance appearance
• Conforms to ASME B18.3 dimensional standard

Compatibility

Designed as a standard 1/4-20 UNC hex socket cap screw suitable for any application requiring an ASME B18.3 compliant fastener in a 1/4-20 tapped hole.

Installation Notes

Install using a 3/16-inch hex key or hex bit driver. Ensure the receiving hole is properly tapped to 1/4-20 UNC specification before driving the screw. De-energize and lock out any equipment before accessing fastener locations inside electrical or mechanical enclosures. Do not exceed the rated drive torque for the fastener diameter to avoid stripping the socket or damaging the thread.