Value Collection HCI30500300N-025BX Hex Head Bolt A325

Product Description

The VALUE COLLECTION HCI30500300N-025BX is a 1/2-13 hex head bolt manufactured from Grade A325 steel with a bright, uncoated finish. The bolt measures 3 inches length under head and features partial threading in accordance with ASTM A325 standards. The 1/2-13 designation refers to a 1/2-inch nominal diameter with 13 threads per inch on a UNC (Unified National Coarse) thread standard. This fastener is suited for structural and general mechanical assembly applications where A325-grade material strength is specified. Installation is performed by millwrights, ironworkers, structural steel erectors, and general mechanical contractors.

This bolt is commonly used in structural steel connections, equipment mounting, and heavy mechanical assemblies where high-strength fasteners meeting ASTM A325 requirements are called out by engineers or inspectors. The partial threading configuration provides a shank bearing surface in the grip zone, which is typical in structural joint applications. The uncoated finish means no additional coating has been applied, making it appropriate for painted or galvanized connection assemblies where coating compatibility is managed separately.

Key Features

• Grade A325 steel construction meets ASTM A325 structural bolt specifications
• 1/2-13 UNC thread size with 3 inches length under head
• Partially threaded shank provides bearing surface in structural grip zones
• Bright uncoated finish for bare steel or field-painted assemblies
• Inch measurement system; compatible with standard SAE tooling

Compatibility

Designed as an ASTM A325-compliant hex head bolt for use in structural steel connections and general mechanical assemblies requiring 1/2-13 UNC fasteners at 3 inches length under head.

Installation Notes

Installation of A325 structural bolts is typically performed by qualified ironworkers or structural steel erectors following AISC and RCSC specifications for high-strength bolted connections. Torque values and installation method (snug-tight, pre-tensioned, or slip-critical) must be determined by the engineer of record and are not generic to this fastener alone. Ensure mating nuts and washers are rated to the same or compatible standard. Inspect threads for damage before installation and do not use impact tools unless the specified tightening procedure explicitly permits it.