Value Collection 721248PR Flat Socket Cap Screw 1/2-13 X 5in

Product Description

The VALUE COLLECTION 721248PR is a flat socket cap screw designed for applications requiring a flush or countersunk fastener profile. It features an 82-degree flat head driven by a 5/16-inch hex socket and is manufactured from alloy steel with a black oxide finish for corrosion resistance in typical shop and industrial environments. The fastener measures 1/2-13 thread size by 5 inches in overall length and is partially threaded along the shank. Machinists, millwrights, and maintenance technicians use this type of fastener where a recessed head is required to keep mating surfaces flush.

This flat socket cap screw is suited for general industrial assembly, fixture building, machine frames, and tooling applications where a countersunk socket drive is preferred over a hex head or button head fastener. The UNC thread form makes it compatible with standard inch-system tapped holes common in North American manufacturing. It is sold individually but must be ordered in multiples of 5 per the minimum order requirement.

Key Features

• 82-degree flat head profile for flush or countersunk installations
• 5/16-inch hex socket drive for high torque input in tight clearances
• 1/2-13 UNC thread for compatibility with standard inch-system tapped holes
• Partially threaded shank for improved shear strength and alignment in through-bolt applications
• Alloy steel construction meets ASME/ANSI B18.3 and ASTM F835 fastener standards
• Black oxide finish provides mild corrosion resistance and reduces light reflection on tooling surfaces

Compatibility

Designed as a standard inch-system flat socket cap screw conforming to ASME/ANSI B18.3 and ASTM F835, suitable for use in any application requiring a 1/2-13 UNC countersunk socket fastener.

Installation Notes

Installation requires a 5/16-inch hex key or socket bit sized for the drive. Power down and de-energize any machinery before servicing fasteners on live equipment. A properly sized countersunk hole at 82 degrees is required for the head to seat flush. Do not exceed the torque capacity of the alloy steel fastener or substitute for metric or fine-thread applications without verifying thread compatibility.