Irwin 225105 C-clamp 5 in Regular-duty Cast Iron

Product Description

The IRWIN 225105 is a regular-duty C-clamp designed for clamping, holding, and securing workpieces during fabrication, assembly, and repair tasks. Built with a cast iron body, it delivers a maximum opening capacity of 5 inches and a throat depth of 3.25 inches, making it well-suited for a wide range of bench and field applications. The clamp handles a load capacity of 1,500 pounds, giving it enough clamping force for typical trade and light industrial use. The 9/16-inch screw diameter provides solid thread engagement and controlled pressure application. This clamp is a standard tool for HVAC technicians, pipefitters, electricians, plumbers, and general tradespeople who need reliable workholding during installation or fabrication work.

The IRWIN 225105 fits standard-depth clamping applications in both residential and commercial settings. It is commonly used to hold pipe, duct sections, conduit assemblies, brackets, and structural components in place while fastening, welding, or bonding operations are completed. The 5-inch opening accommodates a variety of material thicknesses and stacked assemblies encountered in everyday trade work. The compact cast iron frame keeps weight manageable at 4.7 pounds while maintaining structural rigidity under load.

Key Features

• 5-inch maximum opening capacity accommodates a wide range of workpiece sizes
• 3.25-inch standard throat depth for reaching past edges and flanges
• 1,500-pound load capacity rated for regular-duty clamping tasks
• Cast iron body construction provides rigidity and durability
• 9/16-inch screw diameter for positive thread engagement and controlled pressure
• Minimum opening of 0 inches allows clamping of thin or flush materials

Compatibility

Designed as a general-purpose regular-duty C-clamp suitable for use in HVAC, plumbing, electrical, fabrication, and general construction trade applications.

Installation Notes

C-clamps should be seated squarely on the workpiece before applying clamping force to prevent slipping or marring. Do not exceed the rated load capacity, as overloading a cast iron clamp body can cause brittle fracture. Use jaw pads or scrap material to protect finished surfaces when clamping soft metals or coated components. Inspect the screw threads and swivel pad for wear or damage before each use.