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The VALUE COLLECTION HCI20620350G-025BX is a 5/8-11 hex head bolt with a 3-1/2 inch length under head, manufactured from Grade 2 steel with a hot-dipped galvanized finish. This partially threaded fastener meets ASTM A307 standards, making it a reliable choice for general structural and mechanical fastening applications. The hot-dipped galvanized coating provides corrosion resistance in exposed or outdoor environments. Weighing approximately 1 pound per unit, this bolt is sized for medium-duty connections where full threading is not required. It is well suited for use by contractors, maintenance technicians, and tradespeople working in construction, HVAC equipment mounting, plumbing support structures, and general mechanical assembly.
This bolt is commonly used in residential and light commercial construction, equipment mounting, framing connections, and structural fastening where a coarse UNC thread and galvanized finish are specified. The 5/8-11 UNC thread size is a standard coarse thread configuration widely used across trade applications. The partial threading design ensures the unthreaded shank provides a stronger bearing surface in bolted joints, which is appropriate for through-bolt and structural connection scenarios. Tradespeople will find this fastener compatible with standard 5/8-inch hardware including nuts and washers meeting UNC specifications.
Designed as a standard replacement or new-install fastener for applications requiring a 5/8-11 UNC hex head bolt with hot-dipped galvanized finish and ASTM A307 compliance.
Installation should be performed by a qualified tradesperson or mechanic familiar with structural fastening requirements. Always ensure mating nuts and washers share the same thread standard and grade rating. Follow applicable building codes and structural specifications for torque and joint requirements. Inspect the galvanized coating for damage before installation in corrosive or wet environments.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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