Value Collection C701084 Hex Head Cap Screw 5/16-18

Product Description

The VALUE COLLECTION C701084 is a partially threaded hex head cap screw designed for general-purpose fastening applications in mechanical, structural, and equipment assembly work. Sized at 5/16-18 UNC thread with a 4-1/2-inch length under head, this screw is manufactured from Grade 5 steel and left uncoated. It conforms to ASME B18.2.1 dimensional standards, making it a direct fit for applications that call for inch-series hex cap screws. The partial thread design allows for clamping force across unthreaded sections, which is typical in bolted joint assemblies where a shank grip length is required. Installation is performed by machinists, maintenance technicians, and general tradespeople.

This fastener suits a wide range of light-to-medium duty bolted connections across industrial, HVAC equipment mounting, plumbing fixture support, and general mechanical assembly. The 5/16-18 UNC thread pattern is one of the most common inch-series coarse thread standards, compatible with standard hex nuts, lock nuts, and tapped holes of the same specification. Sold in packages of 25 per the supplier unit, this screw is well suited for service vehicles, shop stock, and maintenance inventory where repeated use of this size is expected.

Key Features

• 5/16-18 UNC coarse thread for broad compatibility with standard inch-series hardware
• 4-1/2-inch length under head with partial threading for shank grip-length clamping
• Grade 5 steel construction meets medium-strength fastener requirements
• Uncoated finish suitable for dry indoor applications or where a coating will be applied on assembly
• Conforms to ASME B18.2.1 dimensional standard for hex head cap screws
• Sold in quantities of 25 per package, with a minimum order of 1 package

Compatibility

Designed as an OEM-style replacement or service-stock fastener for any bolted assembly requiring a 5/16-18 UNC hex head cap screw with a 4-1/2-inch length under head per ASME B18.2.1.

Installation Notes

Install using a standard hex wrench or socket drive sized for a 5/16-inch hex head cap screw. Verify that the mating nut or tapped hole is also 5/16-18 UNC before assembly to avoid thread damage. Torque to the fastener grade and joint design specifications required by the equipment manufacturer or applicable mechanical code. Do not use uncoated steel fasteners in outdoor or high-humidity environments without applying a suitable thread sealant or corrosion-resistant coating.