Description 10" C-Clamp - Heavy Duty | Case of 4 | JETSave Big when you buy case lot 4 per case. Only $247.96 per EACH!. Industrial quality drop forged heat treated steel C-clamps Heavy duty swivel pads are secured by a special retaining clip that is superior to crimped pads Acme threaded screw for smooth operation and even clamping pressure Black oxide screw resists welding spatter Clamping Pressure: 9,000 lb Max. Opening: 9-1/2" Throat Depth: 4-1/4"