Wilton 21803 I-bar Clamp 36 Inch 6000 Lb Heavy Duty

Product Description

The WILTON 21803 is a heavy-duty I-bar clamp engineered for demanding clamping applications in fabrication, woodworking, and industrial assembly work. It delivers a maximum jaw opening of 36 inches and a load capacity of 6000 pounds, making it a serious tool for trade professionals who need reliable, high-force clamping across wide workpieces. The 5/8-inch spindle diameter provides the mechanical advantage needed to apply consistent, controlled pressure. The 1-7/8 by 1-13/16 inch clamp face distributes load evenly to reduce surface damage on workpieces. Installers, fabricators, and millwrights rely on this class of clamp for structural assemblies, door and window framing, and heavy panel work.

The WILTON 21803 suits residential and commercial construction environments as well as shop fabrication settings. It is commonly used when assembling large frames, clamping glued panels, securing structural components during welding or fastening, and holding workpieces in position during layout and marking. The 36-inch opening accommodates wide assemblies that smaller bar clamps cannot span. The throat depth of 1-13/16 inches limits reach from the edge of the workpiece, which should be factored into layout planning for deep assemblies.

Key Features

• 36-inch maximum jaw opening handles wide workpieces and large frame assemblies
• 6000-pound load capacity rated for heavy-duty clamping force
• 5/8-inch spindle diameter provides controlled, high-torque actuation
• 1-7/8 by 1-13/16 inch clamp face spreads clamping load to protect workpiece surfaces
• 1-13/16 inch throat depth for consistent edge clamping geometry
• I-bar construction reduces weight relative to full-bar designs while maintaining rigidity

Compatibility

Designed as a heavy-duty I-bar clamp suitable for general fabrication, woodworking, and structural assembly applications requiring a 36-inch jaw opening and high clamping force.

Installation Notes

Always inspect the clamp bar and spindle threads for damage before applying load. Position the clamp face squarely against the workpiece to avoid slipping under load, which can cause workpiece movement or injury. Do not exceed the rated 6000-pound load capacity. When using on finished or soft surfaces, place protective pads between the clamp face and the workpiece to prevent marring.

Technical Specifications

• Maximum Jaw Opening: 36 inches
• Throat Depth: 1-13/16 inches
• Load Capacity: 6000 pounds
• Spindle Diameter: 5/8 inches
• Clamp Face Dimensions: 1-7/8 x 1-13/16 inches
• Weight: 9 pounds
• UOM: Each

Standard Information

• Brand: WILTON
• Manufacturer Part Number: 21803