Value Collection 872207PR Hex Socket Cap Screw 5/16-18

Product Description

The VALUE COLLECTION 872207PR is a hex socket cap screw designed for fastening applications that require a compact drive profile and high tensile strength. This fully threaded fastener features a 5/16-18 UNC thread, a 1-1/2 inch length under head, and a 1/4 inch hex drive size. It is manufactured from alloy steel and finished with a zinc-plated coating to provide corrosion resistance in typical indoor or light-duty industrial environments. The socket head design allows installation in recessed or tight-clearance locations where a standard hex head wrench cannot reach. This screw meets ASME B18.8 and ASTM A574 standards, making it appropriate for structural and mechanical assembly work performed by machinists, millwrights, and maintenance technicians.

This screw is suited for general mechanical assembly, machine building, equipment mounting, and maintenance repair operations across commercial and industrial settings. The 5/16-18 UNC coarse thread provides reliable engagement in standard tapped holes and is widely used in steel fabrication and machinery framing. The zinc-plated finish adds a layer of protection against oxidation in non-immersion environments. Sold individually with a minimum order quantity of 100 pieces, this fastener is appropriate for production line use, MRO inventory stocking, and job shop applications where consistent fastener sizing is required.

Key Features

• 5/16-18 UNC coarse thread for standard tapped-hole compatibility
• Fully threaded shank provides maximum thread engagement along the full 1-1/2 inch under-head length
• 1/4 inch hex drive accepts standard hex keys and socket drivers
• Alloy steel construction meets ASTM A574 high-strength fastener requirements
• Zinc-plated finish per ASME B18.8 for corrosion resistance in dry and light-duty environments
• Socket cap head profile allows use in countersunk or clearance-limited installations

Compatibility

Designed as a standard 5/16-18 UNC hex socket cap screw for use in any application requiring an ASME B18.8 or ASTM A574 compliant alloy steel fastener with a 1/4 inch hex drive and 1-1/2 inch length under head.

Installation Notes

Installation is performed using a 1/4 inch hex key or T-handle driver; an appropriate torque wrench should be used when a specified clamp load is required by the assembly specification. Ensure the receiving tapped hole is clean and free of debris before driving the fastener. Do not exceed the rated tensile strength of the fastener by over-torquing. For structural or load-bearing assemblies, follow the applicable fastener torque guidelines from ASME or the equipment manufacturer.