Value Collection HCI21003000G6 Hex Bolt 1-8 Unc 30in Grade 2

Product Description

The VALUE COLLECTION HCI21003000G6 is a heavy-duty hex head bolt designed for structural and general fastening applications where corrosion resistance and load-bearing strength are required. Manufactured from Grade 2 steel with a hot-dipped galvanized finish, this bolt measures 30 inches in length under the head and carries a 1-8 UNC thread. The partial threading leaves a smooth shank along most of the bolt length, which is standard practice for through-bolting applications where shear strength in the grip zone matters. It meets ASTM A307 standards, making it suitable for general-purpose structural use. Licensed contractors and experienced tradespeople working in construction, HVAC equipment mounting, and mechanical systems installation are the primary users of this fastener.

This bolt is well suited for heavy structural connections, equipment anchoring, and large-scale mechanical assemblies where an inch-system UNC thread and extended length are required. The hot-dipped galvanized coating provides durable corrosion protection for outdoor, exposed, or high-humidity environments, including rooftop HVAC equipment bases, structural steel frames, and similar applications. The ASTM A307 rating confirms conformance to standard mechanical property requirements for carbon steel bolts used in structural connections.

Key Features

• 1-8 UNC thread for compatibility with standard inch-system nuts and hardware
• 30-inch length under head for deep through-bolt and long-reach fastening applications
• Partial threading preserves shank shear strength in the grip zone
• Hot-dipped galvanized finish delivers superior corrosion resistance over electroplated alternatives
• ASTM A307 certified for general-purpose structural fastening
• Grade 2 steel construction balances workability and tensile strength

Compatibility

Designed for use with standard 1-8 UNC hex nuts and washers in inch-measurement fastening systems. Suitable for general structural and mechanical assemblies conforming to ASTM A307 specifications.

Installation Notes

Installation should be performed by qualified tradespeople following applicable structural or mechanical codes. Always shut down and de-energize any associated equipment before installing or removing fasteners in mechanical systems. Use appropriate wrenches or impact tools rated for the fastener size, and torque to values specified by the engineer of record or equipment manufacturer. Do not use this bolt as a substitute for high-strength structural bolts where ASTM A325 or A490 ratings are required by design.