Value Collection HCI31120350NG-005BX Hex Head Bolt A325

Product Description

The VALUE COLLECTION HCI31120350NG-005BX is a fully threaded hex head bolt designed for structural and general-purpose fastening applications. It features a 1-1/8-7 thread size with UNC thread standard and a 3-1/2 inch length under head. Manufactured from A325-grade steel with a hot-dipped galvanized finish, this bolt delivers corrosion resistance suitable for outdoor and high-moisture environments. The fully threaded shank provides maximum thread engagement across the grip length. Installation requires a standard hex wrench or impact driver sized for 1-1/8 inch fasteners. Trade professionals in structural steel, heavy equipment, and industrial maintenance work rely on this grade for load-bearing connections.

This bolt is used in structural steel connections, heavy fabrication, and industrial assembly where ASTM A325 compliance is required. The hot-dipped galvanized finish makes it appropriate for exterior structural applications, bridge work, and other environments where bare steel fasteners would face accelerated corrosion. It is installed by ironworkers, millwrights, and experienced maintenance mechanics working under applicable structural fastener standards. The UNC thread form is compatible with standard inch-series nuts and tapped holes of the same specification.

Key Features

• ASTM A325 structural bolt standard compliance for load-bearing applications
• Fully threaded shank for maximum thread engagement along the full 3-1/2 inch length under head
• Hot-dipped galvanized finish provides corrosion resistance in exterior and high-humidity environments
• 1-1/8-7 UNC thread size suits standard inch-series structural hardware
• A325-grade steel construction meets structural steel connection requirements

Compatibility

Designed for use with 1-1/8-7 UNC inch-series hex nuts and structural washers meeting ASTM A325 fastener requirements. Suitable as an OEM-style replacement or new installation fastener wherever ASTM A325 fully threaded hex head bolts of this thread size and length are specified.

Installation Notes

Installation should be performed by qualified ironworkers, structural mechanics, or maintenance professionals familiar with ASTM A325 structural bolt torque and tensioning procedures per applicable standards such as AISC and RCSC specifications. Always use properly rated hex nuts and hardened washers sized for 1-1/8 inch fasteners. Do not reuse bolts that have been fully tensioned in a structural connection. Follow all applicable safety and lockout procedures before working on energized or load-bearing assemblies.