Value Collection HCI31250400N-005BX Hex Head Bolt A325

Product Description

The VALUE COLLECTION HCI31250400N-005BX is a heavy-duty hex head bolt designed for structural and industrial fastening applications. It features a 1-1/4-7 UNC thread and a 4-inch length measured under the head. Manufactured from steel to ASTM A325 material grade standards, this bolt is partially threaded and carries a bright uncoated finish. It is suited for high-strength bolted connections where ASTM A325 compliance is required, including steel-to-steel structural assemblies. Installation is handled by ironworkers, structural mechanics, or general contractors working to applicable structural codes.

This bolt is commonly used in structural steel construction, heavy equipment fabrication, and industrial installations that require ASTM A325 rated fasteners. The 1-1/4-7 UNC thread size and 4-inch under-head length make it appropriate for thick connection plates and flange joints where partial threading provides a clean bearing shank in the grip zone. It is sold individually and is suitable for both new construction and retrofit structural connections.

Key Features

• ASTM A325 material grade for high-strength structural bolting
• 1-1/4-7 UNC thread for compatibility with standard structural nut and washer sets
• 4-inch length under head accommodates thick connection members
• Partially threaded shank provides a clean grip zone to resist shear loads
• Bright uncoated finish for use in dry or protected structural environments
• Inch measurement system for use with imperial hardware and tooling

Compatibility

Designed as an ASTM A325 compliant high-strength hex head bolt for use with standard 1-1/4-7 UNC heavy hex nuts and structural washers in imperial-system bolted connections.

Installation Notes

Installation of ASTM A325 structural bolts should be performed by qualified ironworkers or structural mechanics following AISC and RCSC specifications for high-strength bolted connections. Always de-energize or isolate any nearby electrical or mechanical systems before working in the connection area. Use calibrated torque wrenches or tension-control tools appropriate for the bolt diameter and specified pretension. Do not reuse A325 bolts that have been fully tensioned without verifying acceptability per the applicable structural specification.