Full Technical Description: Seamless Tin Plated Aluminum Material; Red Color; 4 Inch Overall Length; 1-13/16 Inch Barrel Length; Aluminum/Copper Conductor Material; UL Approval; 35 kV Voltage Rating; 250 MCM Conductor Size; 3/8 Inch Stud Size; T-18/T-324 Die Index; 2-1/16 Inch L X 1-9/32 Inch W X 11/32 Inch Thk Pad Size; 2 Pad Hole(S); 1 Inch Pad Hole Spacing; PENN-CRIMPS[R] Brand; BLUA Model