Full Technical Description: Electro-Tin Plated Aluminum Alloy Material; 3.88 Inch Overall Length; 6 AWG Stranded min. Conductor Size; 3/0 AWG Stranded Max. Conductor Size; Aluminum/Copper Conductor Material; UL 468-A, UL 468-B, CSA Approval; 3 Conductor(S); 1/2 Inch Stud Size; 3 Inch L X 2.83 Inch W X 0.31 Inch Thk Pad Size; 4 NEMA Pad Hole(S); Stud Hole Spacing Size 1.75 Inch; Installation Torque 275 lb-Inch; K3A-U Model