Surecrimp Copper Compression Lug, Copper material, Tin plated connector,Standard barrel, narrow tang, 2 mounting hole(s), mounting bolt/stud size 3/8 in, mounting hole spacing 1 in., UL 486A/B Listed, UL 467 Listed, C22.2 No. 65-03, 180. connecting angle, Copper Primary Conductor 400 kcmil, Contains DE-OX®, sight window, Square tang end, flex conductor range 300 G,H,I,K,M 313.1 DLO, rated for 35 kV, die color code Blue, primary color Silver, die index I-76,