Value Collection 211023PR Flat Socket Cap Screw 5-40

Product Description

The VALUE COLLECTION 211023PR is a flat socket cap screw designed for flush or countersunk fastening applications in mechanical assemblies. Manufactured from alloy steel with a black oxide finish, this screw features an 82-degree flat head and a 5/64-inch hex socket drive. The 5-40 UNC thread runs fully along the 3/8-inch overall length, providing reliable engagement in thin or tight-clearance applications. It meets ASME/ANSI B18.3 and ASTM F835 dimensional and performance standards. Licensed trades and industrial maintenance professionals use this fastener where a recessed, low-profile head is required and space is limited.

This fastener is suited for use in precision mechanical assemblies, tooling fixtures, electronics enclosures, and machine components where a flush seating surface is needed. The 5-40 thread size targets fine-pitch applications common in instrumentation, small-scale mechanical hardware, and light-duty structural connections. It is installed with a 5/64-inch hex key and is appropriate wherever a countersunk socket drive fastener in the inch measurement system is specified.

Key Features

• 82-degree flat head seats flush in standard countersunk holes
• Hex socket drive accepts a 5/64-inch hex key for high-torque engagement in a small form factor
• Alloy steel construction provides strength for demanding mechanical applications
• Black oxide finish offers mild corrosion resistance and reduces light reflection
• Fully threaded 3/8-inch overall length maximizes thread engagement
• Meets ASME/ANSI B18.3 and ASTM F835 standards for dimensional conformance

Compatibility

Designed as an OEM-style replacement or direct-use fastener for applications requiring a 5-40 UNC flat socket cap screw with an 82-degree countersink angle, inch measurement system, and a 5/64-inch hex socket drive.

Installation Notes

Install using a calibrated 5/64-inch hex key or hex bit driver. Ensure the mating hole is properly countersunk to 82 degrees before installation to achieve full flush seating. Follow applicable torque guidelines for the 5-40 thread class and material being fastened. Avoid over-torquing, which can strip the small hex socket or damage the alloy steel head.