Value Collection HCI31000375N-005BX Hex Head Bolt A325

Product Description

The VALUE COLLECTION HCI31000375N-005BX is a heavy-duty hex head bolt manufactured from steel to ASTM A325 structural specifications. It features a 1-8 UNC thread size with a 3-3/4 inch length measured under the head and a partially threaded shank. The bright, uncoated finish leaves the steel bare for applications where galvanic compatibility or field coating is required. At approximately 1 pound, this bolt is sized for load-bearing structural connections in commercial and industrial fastening work. Tradespeople in structural steel erection, mechanical contracting, and heavy equipment installation will encounter this bolt in high-strength joint assemblies.

This bolt is suited for structural steel connections, beam-to-column joints, and heavy mechanical assemblies where ASTM A325 high-strength fastener specifications are required. The partially threaded shank provides a bearing surface in the bolt grip zone, which is critical in shear-loaded structural connections. It is commonly specified by ironworkers, structural contractors, and millwrights working to AISC or project-specific structural drawings that call out A325 high-strength bolts in inch series.

Key Features

• ASTM A325 certified high-strength structural bolt for load-bearing applications
• 1-8 UNC thread form with partially threaded shank for proper grip-zone bearing
• 3-3/4 inch length under head measured per standard length convention
• Bright, uncoated finish — compatible with field coating or hot-dip galvanizing processes
• Steel construction meeting ASTM A325 material grade requirements

Compatibility

Designed as an ASTM A325 high-strength hex head bolt for use in structural steel connections requiring 1-8 UNC inch-series fasteners with a 3-3/4 inch grip length under head. No specific model or equipment compatibility was identified in the product data.

Installation Notes

Installation of ASTM A325 structural bolts should be performed by qualified ironworkers or structural contractors in accordance with AISC and applicable project structural specifications. Shut down and de-energize any adjacent electrical or mechanical systems before working in the bolt zone. Do not reuse A325 bolts that have been fully tensioned, as they are not rated for re-tensioning in most structural applications. Always torque or tension to the specification called out on the structural drawings — do not estimate preload by feel.