Value Collection HCI20750450G Hex Head Bolt 3/8-16 4-1/2 in

Product Description

The VALUE COLLECTION HCI20750450G is a 3/8-16 UNC hex head bolt with a 4.5-inch length under head, manufactured from Grade 2 steel with a hot-dipped galvanized finish. Partially threaded along the shank, it meets ASTM A307 standards for general-purpose structural and mechanical fastening applications. This bolt is suited for trade professionals in HVAC, plumbing, electrical, and general construction who need a reliable, corrosion-resistant fastener for indoor or outdoor installations where galvanized protection is required.

This bolt is used in a wide range of light structural and mechanical assembly applications. The hot-dipped galvanized coating makes it appropriate for outdoor, high-humidity, or corrosive environments such as rooftop HVAC equipment mounting, ductwork support hangers, pipe strut systems, and electrical enclosure anchoring. The partially threaded shank provides a bearing surface that helps resist shear loads in bolted connections. It is sold individually with a minimum order quantity of one unit.

Key Features

• 3/8-16 UNC thread size for broad fastener compatibility across standard hardware
• 4.5-inch length under head suits applications requiring a longer grip length or thick stack-ups
• Grade 2 steel construction meets ASTM A307 general-purpose fastener requirements
• Hot-dipped galvanized finish provides corrosion resistance for outdoor and wet-area use
• Partially threaded shank maintains shank bearing area and resists lateral shear forces
• Inch measurement system with UNC thread standard for compatibility with standard SAE nuts and hardware

Compatibility

Designed as a general-purpose replacement or new-installation hex head bolt for any application requiring a 3/8-16 UNC partially threaded fastener with ASTM A307 compliance and a hot-dipped galvanized finish.

Installation Notes

Install using an appropriately sized hex socket or open-end wrench; avoid impact tools that may strip the hex or damage the galvanized coating. Always pair with a 3/8-16 UNC compatible nut and flat washer. Ensure mating surfaces are clean and free of debris before assembly. Power down or de-energize any equipment before working in panel enclosures or electrical mounting applications where this fastener is used.