Value Collection 211179PR Flat Socket Cap Screw 5/16-24

Product Description

The VALUE COLLECTION 211179PR is a flat socket cap screw designed for flush or countersunk fastening applications in precision assemblies. It features an 82-degree flat head with a 3/16-inch hex socket drive and is fully threaded along its 5/8-inch overall length. Manufactured from alloy steel with a black oxide finish, this screw provides solid mechanical strength and moderate corrosion resistance in controlled environments. The 5/16-24 UNF thread pitch offers fine thread engagement suited to applications where vibration resistance and precise torque control are priorities. Machinists, tool-and-die technicians, and mechanical assembly professionals install this fastener type.

This flat socket cap screw is suited for use in machine frames, fixtures, tooling plates, and mechanical assemblies where the fastener head must sit flush or below the surface of the mating material. The fine UNF thread standard is commonly specified in aerospace, defense, and precision manufacturing environments. The black oxide finish blends visually with dark-finished components and provides a light layer of surface protection against oxidation in indoor or low-moisture conditions.

Key Features

• 82-degree flat head profile allows flush or countersunk installation in precision assemblies
• 3/16-inch hex socket drive for use with standard allen wrenches or hex bit drivers
• Fully threaded 5/16-24 UNF shank along the full 5/8-inch overall length
• Alloy steel construction meets ASME/ANSI B18.3 and ASTM F835 fastener standards
• Black oxide finish provides light corrosion resistance and low-reflectance appearance
• Minimum order quantity of 100 pieces supports production and bulk service use

Compatibility

Designed as an OEM-style replacement or standard supply fastener for applications requiring a 5/16-24 UNF fully threaded flat socket cap screw conforming to ASME/ANSI B18.3 and ASTM F835 specifications.

Installation Notes

Install using a properly sized 3/16-inch hex key or socket bit to avoid rounding the drive recess. Ensure the mating material is countersunk to the correct 82-degree angle before installation to achieve full head seating. Apply appropriate thread lubricant or threadlocker as required by the assembly specification. Follow applicable industry and shop standards for fastener torque based on alloy steel grade and thread size.