Value Collection 403134PS Hex Head Cap Screw 3/8-16 X 4.5in

Product Description

The VALUE COLLECTION 403134PS is a 3/8-16 partially threaded hex head cap screw designed for general-purpose fastening in mechanical, structural, and trade assembly applications. Manufactured from Grade 2 steel with a zinc-plated finish, this fastener measures 4-1/2 inches under the head and follows the UNC thread standard. The zinc coating provides a baseline level of corrosion resistance suitable for interior and light-duty applications. Plumbers, HVAC technicians, electricians, and general contractors reach for hex head cap screws when a reliable, tool-driven fastener is needed for equipment mounting, structural connections, and panel assembly work.

This fastener is suited for light to medium-duty mechanical assemblies where UNC thread engagement and partial threading are required. The partial thread design allows for clamping force between joined materials without full-thread engagement along the grip length, making it appropriate for through-bolt applications and joints where shear load distribution matters. The 9/16-inch hex drive size is compatible with standard open-end, box, and socket wrenches found in any trade toolkit.

Key Features

• 3/8-16 UNC thread for broad compatibility with standard nuts and tapped holes
• 4-1/2 inches under head — suitable for through-bolt and long-grip fastening applications
• Partially threaded shank provides a grip section for shear-load applications
• Grade 2 steel construction meets general-purpose strength requirements
• Zinc-plated finish offers baseline corrosion resistance for dry or semi-protected environments
• 9/16-inch hex drive fits standard trade wrenches and sockets

Compatibility

Designed as a general-purpose UNC hex head cap screw compatible with standard 3/8-16 nuts, flat washers, lock washers, and tapped holes following Unified National Coarse thread specifications.

Installation Notes

Installation requires a 9/16-inch wrench or socket. Power down or de-energize any equipment before fastening components to electrical enclosures or mechanical assemblies. Do not exceed the rated load capacity of Grade 2 fasteners in structural or high-vibration applications where a higher-grade fastener may be required by code or engineering specification. Follow applicable mechanical codes and manufacturer torque guidelines for the assembly being serviced.