Value Collection HCI30750275NG-005BX Hex Head Bolt A325

Product Description

The VALUE COLLECTION HCI30750275NG-005BX is a 3/4-10 hex head bolt intended for structural and heavy-duty fastening applications. It is manufactured from steel to ASTM A325 specifications and features a hot-dipped galvanized finish for corrosion resistance in exposed or high-moisture environments. The bolt has a 2-3/4 inch length under head with Unified National Coarse (UNC) partial threading, making it well-suited for through-bolting applications where a full grip length is required. Licensed tradespeople, ironworkers, and contractors install this type of fastener in structural steel connections, equipment mounting, and heavy fabrication work.

This hex head bolt is used in residential, commercial, and industrial construction where ASTM A325 rated fasteners are specified. It is commonly installed in structural steel beam connections, column base plates, equipment anchoring, and general heavy-duty mechanical assemblies. The hot-dipped galvanized finish makes it appropriate for exterior applications or installations subject to moisture exposure. Its 3/4-10 UNC thread profile is a widely standardized size found across structural framing, bridge, and general fabrication specifications.

Key Features

• ASTM A325 material grade for structural-rated tensile and proof load requirements
• Hot-dipped galvanized finish for corrosion protection in exterior and high-moisture environments
• 3/4-10 UNC thread pattern — a widely specified size for structural connections
• Partially threaded shank provides a clean grip length for shear-critical joints
• 2-3/4 inch length under head suits common through-bolt and base plate configurations
• Inch-system dimensions compatible with standard 3/4 inch structural hardware

Compatibility

Designed as an ASTM A325 structural hex head bolt for use with standard 3/4-10 UNC nuts and washers in structural steel fastening applications per applicable connection specifications.

Installation Notes

Installation of ASTM A325 structural bolts should be performed by qualified ironworkers or contractors following applicable structural and building codes, including AISC and RCSC specifications for high-strength bolt assemblies. Power down or de-energize adjacent systems before working in areas where energized equipment is present. A325 bolts used in slip-critical or bearing-type connections require proper snug-tightening or pretensioning procedures as specified by the engineer of record. Do not substitute lower-grade hardware in applications where A325 structural fasteners are specified by design drawings.