Value Collection 872241PR Hex Socket Cap Screw 5/16-24 Unf

Product Description

The VALUE COLLECTION 872241PR is a hex socket cap screw designed for precision fastening in mechanical and structural assemblies. It features a 5/16-24 UNF thread — a fine-pitch unified thread well suited for applications requiring strong clamp load and resistance to loosening under vibration. The screw measures 2 inches in length under the head and is partially threaded, allowing the unthreaded shank to bear shear loads where needed. Drive engagement is via a 1/4-inch internal hex socket. Manufactured from alloy steel with a zinc-plated finish, this fastener delivers good mechanical strength and corrosion resistance for general industrial and mechanical service.

This screw is a standard choice in machine assembly, equipment maintenance, and fabrication shops. It is used wherever a recessed-drive cap screw is required to draw components tightly against a mating surface. The fine 5/16-24 UNF thread pitch suits applications in precision equipment, automotive assemblies, and close-tolerance fixtures. Partial threading makes it appropriate for through-bolted joints where shank contact with the bore is required. Trade machinists, millwrights, and maintenance technicians regularly install this fastener type.

Key Features

• 5/16-24 UNF fine-pitch thread for strong clamp load and vibration resistance
• 2-inch length under head with partial threading for shear-load-capable installations
• 1/4-inch internal hex socket drive for standard hex key or socket tooling
• Alloy steel construction meets ASME B18.8 and ASTM A574 standards
• Zinc-plated finish provides corrosion protection for general indoor and light industrial use

Compatibility

Designed as a standard ASME B18.8 and ASTM A574 compliant hex socket cap screw for use in any application requiring a 5/16-24 UNF partially threaded fastener with a 1/4-inch hex drive.

Installation Notes

Install with a correctly sized 1/4-inch hex key or socket driver; undersized or worn drivers can round the socket and damage the fastener head. Ensure mating threads are clean and free of debris before installation. Do not exceed the torque rating appropriate for the alloy steel material grade and thread size as specified in your applicable engineering standard. Follow all applicable mechanical codes and workplace safety procedures when working with power-driven fastener tools.