Full Technical Description: High Copper Alloy Body, Silicon Bronze Bolt/Nut/Lockwasher Material; 1-3/4 Inch; (1) Cable to Flat Surface, Direct Burial Used on; UL 467, CUL Approval; 8 to 4 AWG Stranded Conductor Size; 1/2 Inch Bolt Size; 1/4 Inch Bar Thickness; GWL Model