Value Collection 403350BR Hex Head Cap Screw 1-8 X 5 in

Product Description

The VALUE COLLECTION 403350BR is a partially threaded hex head cap screw engineered for general-purpose fastening in structural and mechanical assemblies. It features a 1-8 UNC thread size with a 5-inch length under head, manufactured from Grade 2 steel with a zinc-plated finish for basic corrosion resistance. The 1-1/2-inch hex key drive accepts standard hex wrenches and impact tools. This fastener is installed by maintenance technicians, millwrights, HVAC fabricators, plumbers, and general contractors wherever a reliable coarse-thread fastener is required in mild-environment applications.

This cap screw is suited for light to medium-duty bolted connections in residential and commercial construction, equipment mounting, structural steel fabrication, and mechanical service work. Partial threading provides a smooth shank section along the grip length, which helps maintain clamping load and prevents thread engagement in the bearing material. The UNC thread form is the most common coarse-thread standard in inch-system fastener applications.

Key Features

• 1-8 UNC coarse-thread form — compatible with standard inch-system nuts and tapped holes
• 5-inch length under head with partial threading for reliable grip-length clamping
• Grade 2 steel construction — meets ASME B18.2.1 requirements for general-purpose fastening
• Zinc-plated finish provides basic protection against oxidation in dry and mildly humid environments
• 1-1/2-inch hex drive accepts open-end, box, and impact wrenches
• Weighs approximately 0.5 pounds per unit

Compatibility

Designed as a standard inch-system hex head cap screw for use with 1-8 UNC hex nuts, flat washers, and lock washers in general mechanical and structural fastening applications.

Installation Notes

Installation is performed with a standard 1-1/2-inch open-end, box, or socket wrench. Always verify that mating hardware — nuts, washers, and tapped holes — matches the 1-8 UNC thread standard before assembly. Torque to fastener manufacturer or project engineering specifications; do not substitute Grade 2 hardware where Grade 5 or Grade 8 is specified by a design document. Zinc plating is not rated for continuous outdoor immersion or highly corrosive chemical environments.