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 4-1/2 in. (11.43 cm) OD pipe. Cable holder can be turned 90 degrees. 3/8-16 stainless steel U-bolt, nuts, washers and separator. 6-1/2 x 6-1/4 in. (15.9 x 16.5 cm); approximately 14.6 oz. (414 g). Also available for aluminum cable to copper pipe configuration.