Value Collection 403126PR Hex Head Cap Screw 3/8-16 X 3.5in

Product Description

The VALUE COLLECTION 403126PR is a 3/8-16 x 3-1/2 inch hex head cap screw manufactured from Grade 2 steel with a zinc-plated finish. It features partial threading along the shank and is dimensioned to the Unified National Coarse (UNC) thread standard. The zinc coating provides basic corrosion resistance for general indoor and outdoor fastening applications. This fastener is a staple hardware item used by plumbers, electricians, HVAC technicians, and general contractors when securing brackets, flanges, structural supports, and mechanical assemblies during system installation or service.

This hex head cap screw is suited for general-purpose fastening in residential and light commercial applications. It is commonly used when securing equipment bases, pipe hangers, electrical enclosure brackets, and mechanical supports. The 3/8-16 UNC thread pattern is one of the most widely used coarse-thread sizes in trade work, making this fastener compatible with a broad range of standard nuts, tapped holes, and threaded inserts found across HVAC, plumbing, and electrical installations.

Key Features

• 3/8-16 UNC coarse thread for broad compatibility with standard hardware
• 3-1/2 inch length under head provides adequate grip for deep fastening applications
• Partial threading allows full clamping force between mating surfaces
• Grade 2 steel construction meets general-purpose structural fastening requirements
• Zinc-plated finish offers basic corrosion resistance for mixed-environment use
• 9/16 inch hex key size fits standard wrenches and sockets common in trade toolkits

Compatibility

Designed for use with standard 3/8-16 UNC nuts, washers, and tapped holes in general mechanical, HVAC, plumbing, and electrical support assemblies.

Installation Notes

Installation requires a standard 9/16 inch open-end wrench or socket. Always de-energize electrical systems and shut off relevant utilities before working on any assembly where this fastener secures a critical component. Do not exceed the load ratings appropriate for Grade 2 steel fasteners in structural or high-vibration applications. Follow applicable codes such as the NEC or IPC for fastener requirements in regulated installations.