Value Collection 872395PR Hex Socket Cap Screw 1/2-20 Unf

Product Description

The VALUE COLLECTION 872395PR is a hex socket cap screw designed for precision fastening in mechanical assemblies, tooling fixtures, and general industrial applications. Manufactured from alloy steel with a zinc-plated finish for corrosion resistance, this fastener features a 1/2-20 UNF thread and measures 1-1/4 inches under the head. The 3/8-inch hex drive accepts a standard hex key or socket driver for reliable torque application. It is fully threaded along its entire shank length, making it suitable for through-hole and tapped-hole installations where maximum thread engagement is required. Machinists, maintenance technicians, and industrial assembly crews are the primary installers.

This cap screw is suited for use in metal fabrication, machinery maintenance, and equipment assembly where a flush or recessed fastener head is preferred over a hex bolt. The 1/2-20 UNF fine thread pitch provides higher tensile strength and finer adjustment capability compared to coarse thread equivalents, making it a common choice in applications with vibration or precision fit requirements. Sold individually per package.

Key Features

• 1/2-20 UNF fine thread for high tensile load and vibration resistance
• Fully threaded shank maximizes thread engagement in tapped holes
• Alloy steel construction meets ASME B18.8 and ASTM A574 standards
• Zinc-plated finish provides baseline corrosion protection
• 3/8-inch hex socket drive compatible with standard hex keys and socket drivers
• 1-1/4-inch length under head suits a wide range of material stack thicknesses

Compatibility

Designed as a standard ASME B18.8 and ASTM A574 hex socket cap screw compatible with any tapped or through-hole application requiring a 1/2-20 UNF fine thread fastener.

Installation Notes

Installation is performed by machinists or maintenance technicians using a 3/8-inch hex key or hex socket driver. Ensure the mating tapped hole is clean and free of debris before driving the fastener. De-energize and lock out any machinery before performing fastener installation or removal on live equipment. Follow applicable torque specifications from the equipment manufacturer or relevant industry standards for alloy steel cap screws of this size.