Value Collection HCI31250300N-005BX Hex Head Bolt A325

Product Description

The VALUE COLLECTION HCI31250300N-005BX is a fully threaded hex head bolt designed for structural and heavy-duty mechanical fastening applications. It is manufactured from steel to ASTM A325 structural bolt standards, making it suitable for high-strength connections in steel construction, equipment assembly, and industrial fabrication. The bolt features a 1-1/4-7 thread size following Unified National Coarse (UNC) thread standards, with a 3-inch length measured under the head. The uncoated bright finish means no additional surface treatment is applied, which is appropriate for dry or controlled environments or where field coatings will be applied after installation.

This bolt is used in structural steel connections, heavy equipment mounting, and industrial framing applications where ASTM A325 high-strength fasteners are specified by engineers or project codes. It is commonly installed by ironworkers, millwrights, and maintenance mechanics in commercial construction, manufacturing facilities, and infrastructure projects. The fully threaded shank allows nut engagement along the entire bolt length, providing flexibility in clamping different material thicknesses.

Key Features

• ASTM A325 structural bolt standard — meets high-strength fastener specifications for steel construction
• Fully threaded shank for maximum clamping flexibility across varying material thicknesses
• 1-1/4-7 UNC thread size ensures compatibility with standard heavy-hex nuts
• 3-inch length under head suits a range of structural connection depths
• Bright uncoated finish — no coating buildup that could affect thread fit or torque values

Compatibility

Designed as a high-strength structural replacement fastener for applications requiring ASTM A325-rated hex head bolts in 1-1/4-7 UNC thread size with a 3-inch under-head length.

Installation Notes

Installation of ASTM A325 structural bolts should be performed by qualified ironworkers or mechanics following applicable structural codes such as AISC and RCSC specifications. Always use the correct heavy-hex nut and hardened washer as required by the connection design. Torque or tension values must be sourced from the project engineer or applicable structural fastener standards — do not estimate. Inspect threads and bearing surfaces for damage before installation.