Campbell® can trace its beginnings back to 1834, when one of the many companies that eventually became what is today the Campbell® brand began manufacturing harnesses for horses. Over the years, countless products were added, including wire rope and chain fittings, drop forged chain hardware, high quality tackle blocks, shackles, hooks and much more. Campbell® Plate Clamp, Series: GX Series, 1 ton, 1/16 to 3/4 in Jaw Opening, 3-1/16 in Bail Opening Height, 2-1/16 in Bail Opening Width, 4-3/4 in Overall Width, Load Activated Locking, Forged Steel