Value Collection 872155PR Hex Socket Cap Screw 1/4-20 Unc

Product Description

The VALUE COLLECTION 872155PR is a hex socket cap screw designed for secure mechanical fastening in industrial, commercial, and trade applications. It features a 1/4-20 UNC thread form and a 1-1/4 inch length under head, with full threading along the shank. The drive is a 3/16 inch internal hex socket, requiring an Allen wrench or hex key for installation and removal. Constructed from alloy steel with a zinc-plated finish, this fastener offers corrosion resistance and high tensile strength suited for structural and mechanical assemblies. Licensed trades and maintenance professionals commonly specify this type of cap screw for equipment fabrication, panel mounting, and machinery repair.

This fastener is suited for general mechanical assembly in residential and commercial settings. It is commonly used in HVAC equipment frames, electrical enclosures, pump mounts, and similar structural connections where a flush or recessed drive head is preferred. The zinc plating provides a basic barrier against oxidation in dry to mildly humid indoor environments. This screw meets ASME B18.8 and ASTM A574 dimensional and mechanical standards, making it acceptable for code-referenced fastener applications in fabricated assemblies.

Key Features

• 1/4-20 UNC thread for compatibility with standard inch-series tapped holes
• 1-1/4 inch length under head for medium-depth fastening applications
• Fully threaded shank for maximum thread engagement
• 3/16 inch hex socket drive for Allen wrench or hex key installation
• Alloy steel construction with zinc-plated finish for corrosion resistance
• Meets ASME B18.8 and ASTM A574 standards

Compatibility

Designed as a standard inch-series hex socket cap screw for use in any application requiring a 1/4-20 UNC threaded fastener with a 3/16 inch internal hex drive.

Installation Notes

Installation requires a 3/16 inch hex key or Allen wrench; do not use an undersized key as it may strip the socket. Ensure the mating tapped hole is clean and free of debris before threading. Power down or de-energize any equipment before fastening components in electrical or HVAC assemblies. Torque to the value specified by the equipment manufacturer or applicable assembly drawing.