Value Collection 872211PR Hex Socket Cap Screw 5/16-18

Product Description

The VALUE COLLECTION 872211PR is a hex socket cap screw designed for secure, high-strength fastening in mechanical and structural assemblies. It features a 5/16-18 UNC thread size with a 2-inch length under the head and is partially threaded along its shank. The 1/4-inch hex drive allows for use with standard hex keys and socket wrenches. Constructed from alloy steel with a zinc-plated finish, this fastener resists corrosion while delivering the tensile strength required in demanding industrial and commercial applications. It is sold individually but requires a minimum order quantity of 100 units.

This cap screw is suited for general mechanical assembly, equipment fabrication, and maintenance applications where a recessed hex drive is preferred for torque control and a clean fastener head profile. The partially threaded shank is ideal for applications requiring precise clamping force between mating components. It is commonly used in manufacturing, machinery, HVAC equipment assembly, and structural metalwork by maintenance technicians, machinists, and fabricators.

Key Features

• 5/16-18 UNC thread for compatibility with standard inch-series tapped holes
• 2-inch length under head with partial threading for controlled clamping
• 1/4-inch hex socket drive for use with hex keys and socket drivers
• Alloy steel construction meets ASME B18.8 and ASTM A574 standards
• Zinc-plated finish provides corrosion resistance in typical indoor environments
• Minimum order quantity of 100 units per order

Compatibility

Designed as a standard replacement or stock fastener for any application requiring a 5/16-18 UNC partially threaded hex socket cap screw with a 2-inch length under head, conforming to ASME B18.8 and ASTM A574 specifications.

Installation Notes

Installation is performed with a 1/4-inch hex key or socket driver. Verify that the mating tapped hole is clean and properly threaded to 5/16-18 UNC before installation. Always torque fasteners to the assembly manufacturer's specification — do not substitute a torque value not provided for this specific joint. Follow all applicable mechanical codes and safety procedures when working on equipment that must be de-energized or depressurized before fastener service.