Value Collection HCI30620500NG-010BX Hex Bolt 5/8-11 5in A325

Product Description

The VALUE COLLECTION HCI30620500NG-010BX is a 5/8-11 UNC hex head bolt manufactured from Grade A325 steel with a hot-dipped galvanized finish. It measures 5 inches under the head and is partially threaded, meeting ASTM A325 structural bolt standards. This bolt is designed for high-strength structural connections where corrosion resistance is required. The hot-dipped galvanized coating provides durable protection in outdoor and high-moisture environments. Licensed tradespeople, structural steel contractors, and ironworkers use this fastener in beam-to-column connections, bridge work, and other structural steel assemblies governed by AISC and RCSC specifications.

This bolt is suited for heavy-duty structural steel applications in both commercial and industrial construction. Partial threading ensures the shank bears load in the grip zone, which is standard practice in structural connections. The 5/8-11 thread size and 5-inch under-head length make it appropriate for connections requiring a longer grip without full-thread engagement. It is sold individually and is compatible with standard 5/8-inch structural nuts and washers conforming to ASTM specifications.

Key Features

• Grade A325 steel meets ASTM A325 structural bolt standard for high-strength applications
• Hot-dipped galvanized finish provides corrosion resistance for outdoor and exposed installations
• Partially threaded shank allows load to be carried through the unthreaded grip zone
• 5/8-11 UNC thread size is compatible with standard structural nuts and washers
• 5-inch length under head accommodates thicker structural connections
• Inch measurement system; single-piece packaging for replacement and low-quantity needs

Compatibility

Designed as a high-strength structural replacement bolt for applications requiring ASTM A325 compliance with 5/8-11 UNC threading and a 5-inch under-head length. Use with ASTM-compliant heavy hex nuts and hardened washers per RCSC installation requirements.

Installation Notes

Installation of A325 structural bolts must be performed by qualified ironworkers or structural steel erectors following RCSC Specification for Structural Joints guidelines. Shut down or isolate the structural assembly before replacing load-bearing fasteners. Proper pretensioning methods — snug-tight, turn-of-nut, or direct tension indicator — must be selected based on the connection design. Do not substitute standard hex nuts for heavy hex nuts where the design requires them.