Abstract: An insulator for supporting an electrically charged fence wire on a T-post having a post flange and a post web. The insulator having a shank separating a web clip on one shank end and a flange clip on the other shank end to enable the insulator to protrude from either the flange or the web side of the post. Two pairs of wire support fingers are provided, each of the pairs protruding from a respective one of either the web clip or the flange clip, the fence wire being attached to the pair of support fingers on the web clip or the flange clip that is not joined to the T-post.