Hebei Sali Insulators ‘ yoke design will accept other manufacturers’ clamps with a standard nominal 4″ trunnion. Conductor clamps have been designed with reversible keepers, so that three designs of clamps will accommodate conductors ranging from .25″ to 1.5″ in diameter. Hebei Sali Insulators’ clamps will fit any 4″ spaced yoke of either vertical or horizontal design.