Value Collection 5072BMGNFG Hex Head Bolt 1/2-13 4-1/2 in Grade 2

Product Description

The VALUE COLLECTION 5072BMGNFG is a 1/2-13 UNC hex head bolt designed for general-purpose fastening in structural, mechanical, and construction applications. Made from Grade 2 steel with a hot-dipped galvanized finish, this bolt offers corrosion resistance suited for outdoor and moisture-prone environments. It measures 4-1/2 inches in length under the head with a 3/4-inch hex drive and is partially threaded, providing a stronger grip in bolted joint assemblies. Manufactured to ANSI/ASME B18.2.1 and ANSI/ASME B18.2.2 standards, it meets recognized dimensional and performance specifications. Minimum order quantity is 25 units.

This bolt is well suited for use in framing, structural connections, equipment mounting, and general maintenance applications. The hot-dipped galvanized coating makes it a practical choice for exterior installations, treated lumber connections, and environments where bare steel would be vulnerable to oxidation. Trade professionals including ironworkers, plumbers, pipefitters, electricians, and general contractors regularly use Grade 2 hex bolts of this size for utility and support structure work.

Key Features

• 1/2-13 UNC thread size with partial threading for solid clamping force in bolted joints
• Hot-dipped galvanized finish for enhanced corrosion resistance in outdoor and humid environments
• Grade 2 steel construction meets ANSI/ASME B18.2.1 and B18.2.2 standards
• 4-1/2 inch length under head accommodates moderate-depth fastening applications
• 3/4-inch hex drive compatible with standard wrenches and impact sockets
• Sold in minimum quantities of 25, suitable for jobsite and shop stock

Compatibility

Designed as a standard 1/2-13 UNC hex head bolt for use in applications requiring ANSI/ASME B18.2.1 and ANSI/ASME B18.2.2 compliant fasteners. Compatible with standard 1/2-inch hex nut and washer hardware in inch-system assemblies.

Installation Notes

Installation should be performed by qualified tradespeople familiar with fastener torque requirements for the specific application and material being joined. Always use appropriate flat washers and lock washers or nuts as required by the joint design. Follow applicable building codes and structural specifications when using Grade 2 fasteners in load-bearing connections, as Grade 2 has lower tensile strength than Grade 5 or Grade 8. Avoid mixing inch and metric hardware in the same assembly.