Attributes . Provides a compact means of grounding conduit through an insulated bushing; Protect insulated conductors from abrasion during pulling and mechanical vibration; Provides voltage gradient between line conductors and ground at point of electrical and mechanical stress on conductor insulation; Allows easy insertion of grounding conductor for through or end connection; Low grounding connector profile; Spring action design maintains positive firm contact on grounding conductor; Set screw provides fixed alignment and positive ground continuity; Phenolic insulation, with 150 DEG C UL rating, molded on over metallic conduit stop will not shatter or shrink at sub-zero temperatures; Lugs not sold separately; Copper conductor only for #14-4 lug . Names