Value Collection 011187PR Hex Socket Cap Screw 1/4-28 Unf

Product Description

The VALUE COLLECTION 011187PR is a hex socket cap screw designed for fastening applications requiring a compact, high-strength threaded connection. Manufactured from alloy steel with a black oxide finish, it meets ASME/ANSI B18.3 and ASTM A574 standards for dimensional and mechanical compliance. The 1/4-28 UNF thread size provides a fine-pitch engagement suitable for applications where vibration resistance or precise load control is important. Drive size is 3/16 inches hex. This screw is installed by maintenance technicians, pipefitters, millwrights, and general mechanical tradespeople across industrial, HVAC, and equipment assembly settings.

This fastener is suited for use in light to medium mechanical assemblies, equipment enclosures, machine components, and structural hardware applications. The fine-thread 1/4-28 UNF specification is common in precision assemblies and situations where tensile load and controlled torque are prioritized. The partial threading and 1-3/4 inch length under head allow for secure clamping across a range of material stack thicknesses. The black oxide coating offers mild corrosion resistance and a low-reflectance finish for indoor and sheltered environments.

Key Features

• 1/4-28 UNF fine-thread specification for vibration-resistant fastening
• 1-3/4 inches length under head with partial threading for reliable clamp load
• 3/16-inch hex drive for standard hex key or Allen wrench installation
• Alloy steel construction meets ASTM A574 mechanical requirements
• Black oxide finish provides mild corrosion resistance and matte appearance
• Conforms to ASME/ANSI B18.3 dimensional standards

Compatibility

Designed as an OEM-style replacement or standard-supply fastener for any assembly requiring a 1/4-28 UNF hex socket cap screw with a 1-3/4 inch length under head per ASME/ANSI B18.3.

Installation Notes

Install using a 3/16-inch hex key or appropriate socket driver. De-energize and lock out any equipment before accessing fastener locations on powered assemblies. Do not exceed the torque rating specified by the equipment manufacturer for 1/4-28 UNF alloy steel fasteners. Inspect threads and seating surfaces for contamination or damage before installation.