Value Collection 88546783 Hex Socket Cap Screw 5/16-18 Unc

Product Description

The VALUE COLLECTION 88546783 is a hex socket cap screw designed for secure fastening in mechanical, structural, and industrial assembly applications. Threaded to the 5/16-18 UNC standard and partially threaded along its 2-1/4 inch length under head, this screw delivers strong clamping force with a clean shank section for precision alignment. Driven by a 1/4 inch hex key, it seats flush and tight in countersunk applications. Constructed from alloy steel with a black oxide finish, it offers good tensile strength and moderate corrosion resistance for indoor and light-duty industrial environments. This package contains 13 screws.

This screw is suited for machine assembly, tooling fixtures, equipment maintenance, and general industrial fastening where a socket-drive cap screw is specified. The 5/16-18 UNC coarse thread pattern is widely used in standard American fastener applications, making this a common replacement or stock item for maintenance technicians and fabricators working on machinery, frames, brackets, and mechanical assemblies.

Key Features

• 5/16-18 UNC coarse thread for compatibility with standard American threaded holes
• 2-1/4 inch length under head with partial threading for shank-guided fit
• 1/4 inch hex drive for use with standard hex keys and Allen wrenches
• Alloy steel construction for high tensile strength in demanding applications
• Black oxide finish provides mild corrosion resistance and reduces glare
• Package of 13 screws for bench stock or maintenance supply use

Compatibility

Designed for use in any application requiring a 5/16-18 UNC partially threaded hex socket cap screw with a 1/4 inch drive and 2-1/4 inch length under head, following standard ASME B18.3 socket cap screw dimensions.

Installation Notes

Installation is performed by maintenance technicians, machinists, or millwrights using a 1/4 inch hex key or Allen driver. Ensure the receiving threaded hole is clean and free of debris before driving. Do not exceed the rated drive torque for this screw diameter and material grade, and avoid cross-threading by starting the fastener by hand. Power down and de-energize any associated equipment before performing fastener service on live machinery.