Value Collection 49060 Hex Head Bolt 1/2-13 4-1/2 in Grade B7

Product Description

The VALUE COLLECTION 49060 is a hex head bolt designed for high-strength fastening applications requiring dimensional and material compliance with ASTM A193. This bolt features a 1/2-13 Unified National Coarse (UNC) thread and a 4.5-inch length measured under the head. It is manufactured from alloy steel to Grade B7 material specifications, providing elevated tensile strength and hardness suited to structural, pressure vessel, and industrial assembly work. The uncoated finish makes it appropriate for use where secondary coating or plating will be applied on-site, or where bare steel is specified by design. Typically installed by millwrights, pipefitters, structural ironworkers, and industrial maintenance technicians.

This bolt is commonly used in flange bolting, pressure vessel assembly, structural steel connections, and heavy equipment fabrication where ASTM A193 Grade B7 material compliance is required. Grade B7 alloy steel bolts are a standard specification in high-temperature and high-pressure piping systems, making this fastener suitable for industrial plant maintenance, petrochemical, and power generation environments. The 1/2-13 UNC thread is one of the most widely used coarse-thread sizes in inch-standard fastener assemblies.

Key Features

• 1/2-13 UNC thread form for compatibility with standard inch-series nuts and tapped holes
• 4.5-inch length under head per ASTM A193 dimensional requirements
• Grade B7 alloy steel construction for high tensile strength in demanding service conditions
• Uncoated finish - suitable for bare steel applications or field-applied coatings
• Manufactured to ASTM A193 fastener standard for pressure and temperature service

Compatibility

Designed as an ASTM A193 Grade B7 compliant hex head bolt for use with standard 1/2-13 heavy hex nuts, flat washers, and flanged connections in inch-standard industrial assemblies.

Installation Notes

Installation should be performed by qualified tradespeople following applicable code requirements, including ASME B16.5 for flange bolting or relevant structural specifications. Power down and de-pressurize any system before servicing bolted connections. Use calibrated torque equipment when torque specifications are defined by the design engineer or applicable code - do not estimate torque by feel on pressure-rated assemblies. Inspect threads for damage before installation; do not force a bolt that does not turn freely by hand.