Value Collection HCI31000325N-005BX Hex Head Bolt A325

Product Description

The VALUE COLLECTION HCI31000325N-005BX is a heavy hex head bolt designed for structural and industrial fastening applications. It carries an ASTM A325 material grade designation, making it suitable for high-strength bolted connections where load-bearing integrity is critical. The bolt features a 1-8 UNC thread size with partial threading along the shank and measures 3-1/4 inches in length under the head. Finished bright and uncoated, the steel construction is appropriate for use in controlled environments or where a coating will be applied on-site. Structural ironworkers, millwrights, and commercial contractors are the typical installers of this fastener class.

This bolt is commonly used in structural steel connections, heavy equipment assembly, and industrial framing projects where ASTM A325 specification compliance is required. The 1-8 UNC coarse thread pitch provides reliable engagement in standard structural steel components and heavy fabrications. Partial threading keeps the smooth shank within the grip zone, which is standard practice for structural splice connections and bearing-type joint assemblies.

Key Features

• ASTM A325 grade steel construction meets structural bolt standards for high-strength applications
• 1-8 UNC coarse thread pitch for compatibility with standard structural hardware
• 3-1/4 inch length under head suits medium-depth structural connections
• Partially threaded shank maintains full shank diameter through the grip zone
• Bright uncoated finish allows for field coating or use as-is in protected environments

Compatibility

Designed as a standard ASTM A325 hex head bolt for use in structural steel and heavy industrial fastening applications requiring 1-8 UNC thread engagement.

Installation Notes

Installation of ASTM A325 structural bolts should be performed by qualified tradespeople following applicable AISC and RCSC specifications for structural bolted connections. Power down or de-energize any adjacent equipment before working in close proximity to live systems. Use a calibrated torque wrench or tension control method appropriate to the joint type — snug-tight, pre-tensioned, or slip-critical — as specified by the project engineer. Do not substitute a lower-grade fastener if A325 is specified on structural drawings.