Value Collection 721222PR Flat Socket Cap Screw 3/8-24

Product Description

The Value Collection 721222PR is a flat socket cap screw designed for flush or countersunk fastening applications in mechanical assemblies. It features a 82-degree flat head with a 7/32-inch hex socket drive, allowing installation with a standard hex key into countersunk holes. The fastener is partially threaded along its 3-1/2-inch overall length and carries a 3/8-24 UNF thread specification, making it suitable for fine-thread applications where vibration resistance or precise clamping force is required. Manufactured from alloy steel with a black oxide finish, it offers moderate corrosion resistance and meets ASME/ANSI B18.3 and ASTM F835 standards. Machinists, millwrights, and maintenance technicians commonly use this screw in jigs, fixtures, and machinery.

This flat socket cap screw is suited for residential and industrial mechanical applications where a low-profile head must sit flush or below the workpiece surface. It is commonly installed in machined bores, fixture plates, tooling components, and structural assemblies where a standard hex socket drive provides controlled torque without exposed head profiles. The 3/8-24 UNF fine thread is appropriate for harder materials or applications requiring fine adjustment and strong clamp load in a compact fastener envelope.

Key Features

• 82-degree flat head seats flush in standard countersunk holes
• 7/32-inch hex socket drive for precise torque application with a hex key
• 3/8-24 UNF fine thread for strong clamping force and vibration resistance
• Partially threaded shank along 3-1/2-inch overall length
• Alloy steel construction with black oxide finish for moderate corrosion resistance
• Meets ASME/ANSI B18.3 and ASTM F835 fastener standards

Compatibility

Designed as a standard inch-series flat socket cap screw compatible with countersunk holes machined to ASME/ANSI B18.3 specifications for 3/8-24 UNF fine-thread fasteners.

Installation Notes

Installation is performed by machinists, millwrights, or maintenance technicians using a 7/32-inch hex key or socket driver. Ensure the mating countersink is machined to the correct 82-degree included angle before installation. Degrease and inspect the threaded bore prior to assembly. Do not exceed the rated torque capacity for the alloy steel material grade; consult the applicable machinery or fixture specification for target clamp load.