Value Collection 721216PR Flat Socket Cap Screw 3/8-24

Product Description

The VALUE COLLECTION 721216PR is a flat socket cap screw designed for applications requiring a low-profile, flush-mount fastener. It features a 7/32-inch hex socket drive and is fully threaded along its 2-inch overall length. Manufactured from alloy steel with a black oxide finish, this screw offers improved corrosion resistance and reduced light reflection compared to bare steel. Thread size is 3/8-24 UNF, conforming to ASME/ANSI B18.3 and ASTM F835 standards. It is installed by machinists, millwrights, maintenance technicians, and fabricators working in mechanical assemblies where a countersunk, flush fastener is required.

Flat socket cap screws are commonly used in machine tool fixtures, jigs, mold bases, and precision assemblies where the screw head must sit flush with or below the surface of the mating material. The 3/8-24 UNF fine thread pitch provides greater thread engagement strength and finer adjustment control compared to coarse-thread equivalents. This makes it well suited for metal-to-metal fastening in applications subject to vibration or where precise clamping force is needed.

Key Features

• Flat head profile seats flush in countersunk holes, eliminating protrusion above the work surface
• 7/32-inch hex socket drive for use with standard hex keys or bit drivers
• 3/8-24 UNF fine thread for higher thread strength and vibration resistance
• Fully threaded 2-inch length maximizes engagement across the full fastener body
• Black oxide finish provides mild corrosion resistance and low-glare appearance
• Meets ASME/ANSI B18.3 and ASTM F835 fastener standards

Compatibility

Designed as an OEM-style replacement or standard fastener for machinery, fixtures, and mechanical assemblies requiring a 3/8-24 UNF fully threaded flat socket cap screw in alloy steel.

Installation Notes

Installation is performed by machinists or mechanical technicians using a 7/32-inch hex key or socket bit driver. The mating hole must be properly countersunk to the correct angle and diameter to achieve a flush seating surface. De-energize or lock out any equipment before installing or removing fasteners in active machinery per applicable OSHA lockout/tagout procedures. Do not exceed the torque capacity of the alloy steel material; consult published torque tables for 3/8-24 alloy steel fasteners for appropriate clamping force values.