Value Collection HCI31120475NG-005BX Hex Head Bolt A325

Product Description

The VALUE COLLECTION HCI31120475NG-005BX is a 1-1/8-7 UNC hex head bolt manufactured from A325-grade structural steel with a hot-dipped galvanized finish. It measures 4-3/4 inches in length under the head and features partial threading, making it suited for structural connections where the shank must bear shear loads across a joint. The hot-dipped galvanized coating provides corrosion resistance for outdoor and exposed installations. Weighing 2.344 pounds per unit, this bolt meets ASTM A325 requirements for high-strength structural bolting applications.

This bolt is used in steel-to-steel structural connections common in commercial and industrial construction, including beam-to-column connections, steel frame assemblies, and structural bridgework. It is specified wherever ASTM A325 high-strength fasteners are required per engineering drawings or structural codes. The 1-1/8-7 UNC thread size and partial threading configuration are standard for heavy structural bolting in both new construction and retrofit projects. Installation is performed by ironworkers, structural steel erectors, and licensed contractors working to approved structural drawings.

Key Features

• ASTM A325 certified high-strength structural bolt
• 1-1/8-7 UNC thread form for standard structural bolt compatibility
• Partially threaded shank for shear-bearing joint applications
• Hot-dipped galvanized finish for corrosion resistance in exposed environments
• 4-3/4 inches length under head accommodates typical structural joint stack-ups
• Steel construction meets A325 material grade requirements

Compatibility

Designed as an ASTM A325 high-strength structural hex head bolt for use in steel construction applications requiring 1-1/8-7 UNC partially threaded fasteners with galvanized finish.

Installation Notes

Installation should be performed by qualified structural ironworkers or licensed contractors following approved structural drawings and applicable building codes, including AISC and RCSC specifications for high-strength bolted connections. De-energize or isolate any adjacent systems before working in the installation area. Do not impact-drive A325 structural bolts with tools not rated for structural bolt installation, and follow engineer-specified pretension or snug-tight requirements as noted on project documents. Inspect the galvanized coating for damage before installation, as coating integrity affects long-term corrosion performance.