Value Collection HCI21003400G6 Hex Head Bolt Grade 2

Product Description

The VALUE COLLECTION HCI21003400G6 is a heavy hex head bolt designed for structural and general-purpose fastening applications. It is manufactured from Grade 2 steel with a hot-dipped galvanized finish, providing corrosion resistance in outdoor and wet-environment installations. The bolt features a 1-8 UNC thread size and measures 34 inches in length under the head with partial threading along the shank. This fastener conforms to ASTM A307 standards and is sold individually, making it suitable for single-unit replacement or custom-quantity procurement by contractors and tradespeople working on structural, mechanical, or utility installations.

This bolt is commonly used in construction, mechanical equipment mounting, and utility infrastructure where long-reach fastening is required. The partial threading and large 34-inch shank length make it well suited for through-bolt applications in timber framing, equipment bases, flanged connections, and similar assemblies where a smooth shank is needed through the grip length. The hot-dipped galvanized coating provides added durability in exterior and high-humidity environments encountered in HVAC curb mounting, rooftop equipment anchoring, and plumbing riser supports.

Key Features

• 1-8 UNC thread size with partial threading along the shank
• 34-inch length under head for long-reach through-bolt applications
• Grade 2 steel construction conforming to ASTM A307 fastener standard
• Hot-dipped galvanized finish for corrosion resistance in exterior and wet environments
• Inch measurement system with length measured under the head
• Sold as individual unit with no minimum order quantity above one

Compatibility

Designed as an ASTM A307 Grade 2 compliant hex head bolt suitable for structural and general mechanical fastening applications requiring a 1-8 UNC thread and 34-inch length under head.

Installation Notes

This fastener should be installed by qualified tradespeople following applicable building codes and structural specifications for the application. Use appropriate wrenching tools sized for the hex head and ensure mating nuts and washers meet compatible grade and finish requirements. Verify that the substrate material and load ratings align with ASTM A307 Grade 2 bolt specifications before installation. Inspect the galvanized coating for damage before use, particularly if the bolt will be exposed to continuous moisture or chemically aggressive environments.