Value Collection 97042 Hex Head Cap Screw 5/16-18 X 5 in Grade 5

Product Description

The VALUE COLLECTION 97042 is a 5/16-18 hex head cap screw designed for general fastening applications in mechanical, structural, and maintenance work. The screw measures 5 inches under the head, features partial threading, and is manufactured from Grade 5 steel left uncoated. The UNC (Unified National Coarse) thread form is the standard choice for most carbon steel fastener applications. This screw conforms to ASME B18.2.1, the standard governing dimensions and tolerances for inch-series hex head cap screws. Suitable for use by millwrights, maintenance mechanics, plumbers, HVAC technicians, and electricians on structural and equipment-mounting tasks.

This screw is a fit for a wide range of trade and industrial applications where a 5/16-18 UNC coarse-thread fastener is specified. The partial threading on the 5-inch length allows for grip-zone clamping, making it well suited for bolted connections where the shank bears shear load. Common install scenarios include equipment base plates, hangers, brackets, and mechanical assemblies in both residential and light commercial settings. The uncoated finish is appropriate for indoor or protected environments where corrosion resistance is not a primary requirement.

Key Features

• 5/16-18 UNC coarse thread — one of the most common thread sizes in inch-series fastener work
• 5-inch length under head with partial threading for shear-bearing grip zones
• Grade 5 steel construction meets minimum proof load and tensile strength requirements for medium-strength fastener applications
• Conforms to ASME B18.2.1 for dimensional consistency and interchangeability
• Uncoated finish keeps cost low for dry, indoor, or protected installations
• Sold in a 50-piece package with a minimum order quantity of 1

Compatibility

Designed as a standard inch-series hex head cap screw for any application specifying a 5/16-18 UNC partially threaded fastener conforming to ASME B18.2.1.

Installation Notes

Install with a standard hex wrench, socket, or open-end wrench sized for the 5/16-18 hex head. Verify mating nut or tapped hole thread form is UNC before assembly. De-energize or lock out equipment before fastening components on live mechanical or electrical systems per applicable site safety procedures. Do not use in outdoor or high-moisture environments without corrosion protection, as the uncoated finish provides no rust resistance.