Value Collection 011181P Hex Socket Cap Screw 1/4-28 Unf

Product Description

The VALUE COLLECTION 011181P is a hex socket cap screw designed for high-strength fastening applications in mechanical assemblies, tooling, and fabrication work. It features a 1/4-28 UNF thread size with 1 inch of length under the head and is fully threaded along its entire shank. The 3/16-inch hex drive socket head accepts a standard hex key or Allen wrench. Constructed from alloy steel with a black oxide finish, this screw delivers solid tensile strength and moderate corrosion resistance in controlled environments. It conforms to ASME/ANSI B18.3 and ASTM A574 standards, making it a recognized fastener for precision and structural applications.

This screw is suited for general mechanical assembly, jig and fixture work, machine component mounting, and other applications requiring a fine-thread socket cap fastener. The 1/4-28 UNF thread pitch provides finer thread engagement than coarse-thread equivalents, making it well suited for thin materials, load-sensitive joints, or assemblies that require precise torque control. It is commonly used by machinists, millwrights, maintenance mechanics, and fabricators across industrial and light manufacturing environments.

Key Features

• 1/4-28 UNF fine thread for precise thread engagement and controlled clamping force
• Fully threaded shank provides maximum thread engagement throughout the 1-inch length under head
• 3/16-inch hex socket drive accepts standard Allen keys and hex bit drivers
• Alloy steel construction meets ASTM A574 mechanical requirements for socket cap screws
• Black oxide finish provides mild corrosion resistance and reduces light reflection in tooling applications
• Conforms to ASME/ANSI B18.3 dimensional standards

Compatibility

Designed as a standard 1/4-28 UNF hex socket cap screw per ASME/ANSI B18.3, suitable for use in any application requiring a fine-thread alloy steel socket cap fastener of this size and drive type.

Installation Notes

Installation is performed using a 3/16-inch hex key or Allen wrench. Ensure mating threads are clean and free of debris before installation. Apply thread-locking compound or specified preload torque per the assembly engineering requirements for the joint. Always de-energize and lock out any machinery before servicing fastened assemblies.