Cast aluminum pipe clamp with stainless steel spacer and bronze 2-way bolt pressure cable holder. For bonding aluminum compatible piping to copper cable. Fits up to 2 in. (5.1 cm) OD pipe. Cable holder can be turned 90 degrees. 5/16-18 stainless U-bolt, nuts, washers and separator. 3-1/4 x 3-1/2 in. (8.25 x 8.9 cm); approximately 8.23 oz. (233 g). Also available for aluminum cable to copper pipe configuration.