Pony 10" Capacity Adjustable Carriage C-Clamp, 3-5/8" Throat Depth10" Capacity Carriage C Clamp, 3 5 8" Throat Depth Normal Load Limit 2,400 lb Universally used, general purpose "C" clamp for regular duty industrial service. Frames are liberally proportioned and heat treated for maximum strength. The longer frame hubs and special, square thread screws assure durability. The heavy duty frame design and heat treating provide maximum strength. Ponys heavy duty carriage C clamps are the most universally used general