Klein Tools 3221 Erection Wrench 5/8 Inch Bolt

Product Description

The KLEIN TOOLS 3221 is a structural erection wrench sized for 5/8-inch US regular nuts and bolts. Erection wrenches are built for ironworkers and structural tradespeople working on steel framing, tower assembly, and similar bolted-connection applications. The tapered handle doubles as an alignment spud, allowing the user to line up bolt holes in structural members before driving fasteners. At 1.3 pounds, the 3221 delivers solid heft without excessive fatigue over a full shift. This is a single-piece hand tool requiring no power source or consumables.

The 3221 is intended for use in structural steel erection, ironwork, and heavy construction settings where 5/8-inch US standard bolts and nuts are the fastener of choice. It fits naturally into the toolkit of ironworkers, riggers, and structural welders who need a reliable combination of open-end wrench and spud bar in a single tool. It is sold individually (each unit).

Key Features

• Sized for 5/8-inch US regular nuts and bolts
• Tapered spud handle for aligning bolt holes in structural members
• 1.3-pound weight provides working mass without excessive fatigue
• Single-piece construction with no moving parts
• Sold as individual unit

Compatibility

Designed for use with 5/8-inch US regular hex nuts and bolts in structural steel and ironwork applications.

Installation Notes

Erection wrenches are typically used by licensed ironworkers and structural tradespeople on jobsites subject to OSHA fall protection and struck-by hazard requirements. Always secure hand tools with a tether or tool lanyard when working at elevation. Inspect the wrench head for cracks or deformation before each use and remove from service if damage is found.

Technical Specifications

• Bolt Size: 5/8 inches
• Nut Type: US Regular
• Weight: 1.3 pounds
• UPC: 092644680168
• Sold As: Each

Standard Information

• Brand: KLEIN TOOLS
• Manufacturer Part Number: 3221