https://www.mechanicallugs.com/turn-prevent-lugs/2s2-0-31-42-double-wire-lugs-2-0-14-awg.html
"2S2/0-31-42" Double Wire Lugs (2/0-14 AWG) & FLEX Wire (1/0-14 AWG)
"2S2/0-31-42" 2/0-14 AWG wire range, and FLEX wire, 1/0-14 AWG, G-K including mm2 class 5, 2 barrel, aluminum or copper wire, CU9AL, 90C temperature rating,...
double wire lugs