The Mega-Clamp is created from high tensile, aircraft grade, extruded aluminum, so it’s both stronger and lighter than cast iron clamps. The Mega-Clamp’s safety factor far exceeds industry standards, breaking at over 2-1/2 tons at an independent testing laboratory. It is half the weight, and twice as strong as most cast iron clamps.500 Lb (227 Kg), 2 inch C-Clamp

• Safe Vertical Working Load: 600 lb 273 kg
• Weight: 13.4 oz
• Dimensions: 5.875" tall x 3.675" wide x 1" thick