Value Collection HCI31120750NG-005BX Hex Head Bolt A325

Product Description

The VALUE COLLECTION HCI31120750NG-005BX is a heavy-duty hex head bolt engineered for structural fastening applications where high-strength connections are required. Manufactured to ASTM A325 specifications, this bolt features a 1-1/8-7 UNC thread size and a 7.5-inch length under head with partial threading. The hot-dipped galvanized finish provides corrosion resistance in outdoor and exposed environments. At 3.126 pounds per unit, this is a substantial structural fastener suited for steel-to-steel connections in construction, industrial, and heavy equipment assemblies. Installation requires standard hex tooling and is typically performed by ironworkers, millwrights, or structural mechanics following applicable torque and tightening specifications defined by project engineering documents.

This bolt is commonly used in structural steel connections, bridge construction, heavy machinery mounting, and industrial fabrication where ASTM A325 compliance is specified by engineers or inspectors. The partial threading leaves a smooth shank section that resists shear forces in bearing-type connections. The hot-dipped galvanized finish makes it suitable for exterior, high-humidity, or chemically exposed environments where bare steel would corrode. It is typically specified on projects governed by AISC, RCSC, or similar structural steel standards requiring documented bolt grades.

Key Features

• ASTM A325 certified high-strength structural bolt
• 1-1/8-7 UNC thread size with partial threading for shear-bearing connections
• 7.5-inch length under head accommodates thicker steel stack assemblies
• Hot-dipped galvanized finish for corrosion resistance in exposed environments
• Steel construction meeting Grade A325 material and mechanical property requirements

Compatibility

Designed as an ASTM A325-compliant structural hex head bolt for use in steel-to-steel structural connections where 1-1/8-7 UNC fasteners are specified by engineering or project documentation.

Installation Notes

Installation should be performed by qualified tradespeople following AISC and RCSC specifications for structural bolt tightening. Power down or de-energize any adjacent systems before working in the installation area. Use calibrated torque wrenches or tension-control tools appropriate to the bolt diameter and specified pretension values defined in the project engineering documents. Do not substitute torque values without consulting the applicable structural specification.