Value Collection HCI20751600G6-001BX Hex Head Bolt 3/8-16

Product Description

The VALUE COLLECTION HCI20751600G6-001BX is a 3/8-16 UNC hex head bolt with a 16-inch length under head, manufactured from Grade 2 steel with a hot-dipped galvanized finish. It is partially threaded, meaning the shank extends smooth from the head before threading begins near the tip. Conforming to ASTM A307 standards, this bolt is suited for structural and mechanical fastening applications where corrosion resistance and reliable hold strength are required. It is installed by maintenance technicians, contractors, and trade professionals working across HVAC, plumbing, mechanical, and general construction applications.

This bolt is a practical choice for outdoor and exposed indoor installations where moisture or environmental corrosion is a concern. The hot-dipped galvanized finish provides a thick zinc coating that resists rust in damp or humid conditions. The partial thread design allows for a clean shear plane and improved grip in bolted connections passing through multiple materials or thick stock. It is commonly used in equipment mounting, structural framing connections, duct support hangers, pipe supports, and similar trade applications.

Key Features

• 3/8-16 UNC thread size with 16-inch length under head for deep-reach or through-bolt applications
• Hot-dipped galvanized finish provides heavy zinc coating for corrosion resistance in wet or outdoor environments
• Partially threaded shank allows for controlled bearing load distribution and clean shear plane
• Grade 2 steel construction meets ASTM A307 fastener standard
• Inch measurement system — compatible with standard 3/8-inch hardware, nuts, and washers

Compatibility

Designed as an OEM-style replacement and general-use fastener for applications requiring a 3/8-16 UNC hex head bolt with a 16-inch length under head and hot-dipped galvanized finish per ASTM A307.

Installation Notes

Installation is performed by qualified contractors, maintenance technicians, or trade professionals using standard hex wrenches or socket sets sized for a 3/8-inch bolt head. Ensure mating nuts and washers are rated compatible with Grade 2 galvanized hardware to avoid galvanic incompatibility. Always torque fasteners per the applicable project specification or engineering requirement — do not overtighten, as Grade 2 fasteners have lower proof load than higher-grade hardware. Confirm that the fastening application is appropriate for ASTM A307 Grade 2 material before installation in load-critical connections.