Value Collection HCI30870225N-005BX Hex Head Bolt A325

Product Description

The VALUE COLLECTION HCI30870225N-005BX is a fully threaded hex head bolt intended for structural and mechanical fastening applications. It carries a 7/8-9 thread size on the Unified National Coarse (UNC) standard and measures 2.25 inches in length under the head. The bolt is manufactured from Grade A325 steel in an uncoated, bright finish and meets ASTM A325 fastener standards. It is installed by ironworkers, structural steelworkers, millwrights, and maintenance mechanics who require a heavy-hex-compatible, high-strength fastener for load-bearing connections.

This bolt is suited for structural steel connections, equipment mounting, machinery assembly, and heavy-duty mechanical joints in both commercial and industrial settings. Its fully threaded shank provides uniform thread engagement along the entire usable length, which is particularly practical in shorter-grip applications where partial threading would reduce effective thread engagement. The UNC thread form is standard in North American inch-series fastener applications.

Key Features

• Fully threaded shank for maximum thread engagement in short-grip applications
• 7/8-9 UNC thread size meets North American inch-series standards
• Grade A325 steel construction satisfies ASTM A325 structural bolt requirements
• Bright uncoated finish — no coating thickness to affect hole fit or torque-tension relationship
• Length under head: 2.25 inches — measured per standard fastener convention

Compatibility

Designed as an OEM-style replacement or standard-stock hex head bolt for structural and mechanical assemblies requiring a 7/8-9 UNC, 2-1/4-inch fully threaded A325 fastener.

Installation Notes

Installation of A325 structural bolts should be performed by qualified ironworkers or mechanics following applicable structural steel connection specifications, such as those outlined by the Research Council on Structural Connections (RCSC). Always confirm hole diameter, grip length, and required installation method — snug-tight, pre-tensioned, or slip-critical — before fastener selection is finalized. Power down or de-energize any associated equipment before working in mechanical assemblies. Do not substitute this bolt in applications requiring a different grade, coating, or thread specification without engineering review.