Value Collection HCI20620450G-025BX Hex Head Bolt 5/8-11

Product Description

The VALUE COLLECTION HCI20620450G-025BX is a 5/8-11 hex head bolt with a 4.5-inch length under head, manufactured from Grade 2 steel with a hot-dipped galvanized finish. It uses a Unified National Coarse (UNC) thread form and is partially threaded, conforming to ASTM A307 standards. The hot-dipped galvanized coating provides corrosion resistance for outdoor and exposed fastening applications. This bolt is a standard inch-system fastener suited for structural assembly, framing, and general mechanical connections across construction, mechanical, and utility trades.

This bolt is appropriate for residential and commercial construction, HVAC equipment mounting, structural framing connections, and utility installations where a standard-strength galvanized fastener is required. The partial threading is well-suited for through-bolting applications where bearing load is distributed along an unthreaded shank. Trades including HVAC technicians, plumbers, electricians, and general contractors commonly use this fastener when assembling equipment bases, mounting brackets, and structural members in corrosion-prone environments.

Key Features

• 5/8-11 UNC thread size for wide tool and hardware compatibility
• 4.5-inch length under head suits through-bolt and deep-stack applications
• Hot-dipped galvanized finish provides durable corrosion resistance in wet or outdoor environments
• Partially threaded shank allows full bearing load transfer through the grip length
• ASTM A307 certified Grade 2 steel meets recognized structural fastener standards

Compatibility

Designed as a standard inch-system hex head bolt for general structural and mechanical fastening applications requiring a 5/8-11 UNC thread and ASTM A307 Grade 2 galvanized fastener.

Installation Notes

Installation should be performed by qualified tradespeople following applicable structural or mechanical codes. Always use a properly sized 15/16-inch hex wrench or socket when driving this fastener. Ensure mating nuts and washers are rated to ASTM A307 or equivalent and are compatible with a hot-dipped galvanized finish. Do not mix galvanized fasteners with incompatible metals in corrosive environments without appropriate isolation to prevent galvanic corrosion.