Burndy's YAV6CL2TC14FX two-hole standard barrel compression lug with inspection window. features a 1/4 in stud size and 5/8 in stud hole spacing. Designed to be used with #6 AWG stranded wire. 6 Flex, Electro-Tin plated copper, UL Listed, 90 Deg. C, Up to 35kV, Blue Color Code, 7 or 374 Die Index.