Value Collection 872291PR Hex Socket Cap Screw 3/8-24 Unf

Product Description

The VALUE COLLECTION 872291PR is a hex socket cap screw designed for precision fastening applications requiring a compact, high-strength connection. This fully threaded fastener measures 1 inch in length under the head and is driven by a 5/16-inch hex key. Manufactured from alloy steel and finished with a zinc plating for corrosion resistance, it conforms to ASME B18.8 and ASTM A574 standards. The 3/8-24 UNF thread designation indicates a fine-thread profile, which provides higher tensile strength and better resistance to loosening under vibration compared to coarse-thread equivalents. Technicians and machinists rely on this screw where tight thread engagement and controlled torque are required.

This screw is suited for mechanical assemblies, fabrication work, and equipment repair across industrial, HVAC, plumbing, and electrical trade applications. The fine UNF thread pattern makes it a common choice in applications involving thin materials, precise clamping force, or environments subject to vibration. The zinc coating provides baseline protection against rust in moderate-exposure environments. It is appropriate for both OEM assembly and field service work where a socket-drive fastener is specified. Sold in minimum order quantities of 100 pieces per order.

Key Features

• 3/8-24 UNF fine thread for higher tensile strength and vibration resistance
• Fully threaded body with 1-inch length under head for maximum thread engagement
• 5/16-inch hex socket drive for use with standard hex keys or Allen wrenches
• Alloy steel construction meets ASTM A574 mechanical requirements
• Zinc-plated finish provides corrosion protection in moderate-exposure environments
• Conforms to ASME B18.8 dimensional standards

Compatibility

Designed as a standard 3/8-24 UNF hex socket cap screw suitable for mechanical assemblies, equipment housings, and structural fastening applications where fine-thread socket drive fasteners are specified per ASME B18.8.

Installation Notes

Installation is performed by mechanics, millwrights, or trade technicians using a 5/16-inch hex key or Allen socket. Always ensure mating threads are clean and free of debris before installation. Torque to the specification listed in the applicable equipment service manual or engineering drawing. Do not exceed rated torque, as alloy steel fine-thread fasteners are sensitive to over-torquing.