Value Collection HCI31120375NG-005BX Hex Head Bolt A325

Product Description

The VALUE COLLECTION HCI31120375NG-005BX is a Grade A325 hex head bolt designed for structural steel connections and heavy-duty fastening applications. Manufactured from steel with a hot-dipped galvanized finish, this bolt measures 3-3/4 inches in length under the head and carries a 1-1/8-7 UNC thread. It is partially threaded, which is standard for structural bolting where the shank bears load across the grip length. The ASTM A325 designation indicates it meets the mechanical property requirements for high-strength structural bolts, making it suitable for steel-to-steel connections in construction and industrial assembly. Weight is 2.09 pounds per package.

This bolt is used in structural steel framing, beam-to-column connections, heavy equipment mounting, and other applications governed by AISC or similar structural codes. The hot-dipped galvanized finish provides corrosion resistance suitable for exterior and corrosive-environment installations. Ironworkers, structural steel contractors, and millwrights typically work with A325 fasteners in these settings. The 1-1/8-7 thread size is a larger-diameter specification common in heavy structural assemblies where high clamping force is required.

Key Features

• Grade A325 high-strength structural bolt meeting ASTM A325 standard
• Hot-dipped galvanized finish for corrosion resistance in exterior and industrial environments
• Partially threaded shank for load-bearing grip in structural connections
• 1-1/8-7 UNC thread for compatibility with standard heavy structural hardware
• 3-3/4 inches length under head accommodates thicker steel connection stacks

Compatibility

Designed as an OEM-style replacement or direct-use structural fastener for applications requiring ASTM A325 high-strength hex head bolts in 1-1/8-7 UNC thread size.

Installation Notes

Installation of A325 structural bolts should be performed by qualified ironworkers or structural steel contractors following AISC and applicable building code requirements. Bolts must be installed with matching A325 nuts and hardened washers as required by the connection design. Use calibrated torque wrenches or an approved turn-of-nut method per the applicable structural specification. Never reuse A325 bolts that have been fully tensioned, as they may not be re-tensioned reliably.