Value Collection HCI30870350NG-005BX Hex Head Bolt 7/8-9

Product Description

The VALUE COLLECTION HCI30870350NG-005BX is a 7/8-9 UNC hex head bolt with a 3-1/2 inch length under head, manufactured from Grade A325 steel with a hot-dipped galvanized finish. It is partially threaded, conforming to ASTM A325 standards, making it a structural-grade fastener suited for high-load bolted connections. The hot-dipped galvanized coating provides corrosion resistance in exposed or outdoor applications. This bolt is installed by ironworkers, structural steel contractors, and general construction trades working on steel-to-steel connections, structural assemblies, and heavy fabrication projects.

This bolt is designed for structural applications where ASTM A325 compliance is required, including steel frame construction, beam and column connections, bridge components, and other load-bearing assemblies. The 7/8-9 UNC thread pattern and partial threading are standard configurations for structural bolting in both residential and commercial construction settings. The hot-dipped galvanized finish makes it appropriate for exterior, high-humidity, or corrosive environments where bare steel fasteners would be unsuitable.

Key Features

• Grade A325 structural steel construction meets ASTM A325 fastener standard
• Hot-dipped galvanized finish for enhanced corrosion resistance in outdoor and exposed applications
• Partially threaded shank provides bearing-surface length for structural shear connections
• 7/8-9 UNC thread size is a common structural bolting configuration
• 3-1/2 inch length under head accommodates standard structural steel stack-ups
• Inch measurement system with UNC thread standard

Compatibility

Designed as an ASTM A325 structural hex head bolt for use in steel-to-steel bolted connections and structural assemblies requiring Grade A325 fasteners per applicable construction standards.

Installation Notes

Installation of structural A325 bolts should be performed by qualified ironworkers or structural contractors following AISC and RCSC specifications for structural bolting. Proper installation requires calibrated torque wrenches or tension-control tooling to achieve specified pretension levels as defined by the applicable structural design documents. Always verify the correct grip length and thread engagement before torquing. Consult project engineering drawings and specifications for required bolt assembly configuration and inspection requirements.