Value Collection D30067 Hex Head Cap Screw 3/8-16 X 4.5 in

Product Description

The VALUE COLLECTION D30067 is a 3/8-16 partially threaded hex head cap screw manufactured from Grade 5 steel with a zinc-plated finish. It measures 4-1/2 inches under the head and is produced to ASME B18.2.1 standards, ensuring consistent dimensional tolerances and mechanical properties. The UNC (Unified National Coarse) thread form is the standard for general-purpose fastening in North American trade applications. This fastener is suited for structural and mechanical assemblies where a reliable, corrosion-resistant hex head screw is required.

This screw is used across a wide range of trade and industrial applications including HVAC equipment mounting, plumbing fixture attachment, electrical panel and enclosure assembly, and general mechanical fabrication. The partial threading allows for a smooth shank section, which is useful when fastening through clearance holes or when load-bearing shank strength is a priority. Installers working in light to medium structural assembly will find this a straightforward, code-compliant fastener choice.

Key Features

• Grade 5 steel construction for reliable tensile and shear strength in general mechanical assemblies
• Zinc-plated finish provides corrosion resistance for indoor and moderately exposed environments
• Partially threaded shank allows clean clamping and load distribution through clearance holes
• UNC 3/8-16 thread form for broad compatibility with standard nuts, inserts, and tapped holes
• Manufactured to ASME B18.2.1 for consistent dimensional accuracy

Compatibility

Designed for use with standard 3/8-16 UNC nuts, washers, and tapped holes in steel, aluminum, or similar materials across HVAC, plumbing, electrical, and general mechanical assemblies.

Installation Notes

This fastener is typically installed by mechanics, technicians, or tradespeople using a standard 9/16-inch hex wrench or socket. Always de-energize and lock out equipment before fastening components on or near electrical or mechanical systems. Do not exceed the rated torque range for Grade 5 fasteners of this diameter as specified by applicable mechanical codes or equipment manufacturer guidelines. Inspect threads for damage before installation to ensure proper engagement.