Need to clamp over an I-beam? Tired of not being able to accommodate odd shapes? The Wilton Spark-Duty J-Series F-clamps have a uniquely shaped design that makes clamping irregular shapes easy.

• Spark-Duty copper-plated spindle extends the life of the clamp by protecting the spindle and pad from harmful welding spatter.
• J-Shaped Rail steps over i-beams and irregular shapes.
• Quick-Twist Pads are simple and fast to replace with a V-Groove pad included in every box, or optional serrated pad.
• Ergonomic Wilton-Grip has anti-fatigue properties and provides comfort during repetitive clamping.
• Drop forged arm provides minimal flex under heavy work loads.

• Clamping Capacity (in) 20
• Throat Depth (in) 7
• Clamping Force (lbs) 4840
• Nominal Rail Size (in) 1-9/16 x 3/4
• Spindle Diameter 7/8
• Quick-Twist Pads Yes
• Quick-Twist Plain Pad Stook Number 2909102
• Quick-Twist Serrated Pad Stock Number 2909202
• Quick-Twist V-Groove Pad Stock Number 2909302
• Spindle and T-Handle with Spring Pin Stock Number 1701603
• Joint with Spring Pin Stock Number 1701502
• Nut Stock Number 1701702

1x Wilton 86920 4800J-20C, 20" J SERIES F-CLAMP