Tin-Plated Aluminum Two-Hole NEMA Lugs - straight lug, #6 ACSR, #6 Compressed , #4 Solid - Compact. Installing dies TU, 52, BG, 243, 5/8, CSA22. Length 5-1/8 inch. Pad 7/8 inch wide x 3-1/16 inch long x 7/32 inch thick. (2) 9/16 inch diameter holes on 1-3/4 inch center. Barrel 1-15/32 inch. Oxide Inhibitor. Blue Cap. Dual Rated for Aluminum and Copper Conductors