Value Collection 872239PR Hex Socket Cap Screw 5/16-24 Unf

Product Description

The VALUE COLLECTION 872239PR is a partially threaded hex socket cap screw designed for precision fastening applications where a secure, torque-resistant connection is required. Manufactured from alloy steel with a zinc-plated finish, this fastener meets ASME B18.8 and ASTM A574 standards. It features a 5/16-24 UNF thread size and a 1-3/4 inch length under head, driven by a 1/4 inch hex socket drive. The zinc coating provides corrosion resistance suitable for general industrial and mechanical assembly environments. Machinists, maintenance technicians, and mechanical contractors rely on this grade of socket cap screw for reliable clamping force in close-tolerance assemblies.

This screw is suited for mechanical assemblies, machine building, tooling fixtures, and equipment maintenance across industrial and commercial applications. The fine thread pitch of 5/16-24 UNF allows for precise torque control and is particularly effective in applications requiring higher clamping force or finer thread engagement than coarse-thread equivalents. Partial threading keeps the shank smooth for applications where the unthreaded portion acts as a guide or bearing surface within a bored hole.

Key Features

• 5/16-24 UNF fine thread for precise torque control and strong clamping force
• 1-3/4 inch length under head with partial threading for guided-fit applications
• Alloy steel construction meets ASTM A574 mechanical requirements
• Zinc-plated finish provides moderate corrosion resistance
• 1/4 inch hex socket drive compatible with standard hex keys and socket drivers
• Conforms to ASME B18.8 dimensional standards

Compatibility

Designed as an OEM-style and replacement fastener for mechanical assemblies requiring a 5/16-24 UNF partially threaded hex socket cap screw to ASME B18.8 and ASTM A574 specifications.

Installation Notes

Installation is performed by machinists or mechanical technicians using a 1/4 inch hex key or socket driver. Always ensure the mating threaded hole is clean and free of debris before installation. Do not exceed the torque rating specified for the thread size and material grade of the mating component. Minimum order quantity is 100 units per order.