Appleton Universal ground clamp of trade size 3/4-Inch, features cast bronze construction and comes with brass screws. It accommodates conductors of size 4 - 2/0-AWG. Ground clamp measures 1-7/8-Inch x 1-1/4-Inch x 1-11/16-Inch. It is suitable for connecting grounding conductors run bare in armor/conduit. Ground clamp is UL listed.