Abstract: The disclosure describes a cable clamp which will adapt to and hold firmly cables of various diameters. The clamp includes a "U" shaped body member having a base from which parallel legs project. The outer surface of each of the legs carries a row of teeth. A keeper having a flat plate defining two spaced rectangular openings is placed into engagement with the legs. Relative movement between the plate and the legs is inhibited by the teeth engaging the edges of the openings. Carried on the plate and projecting toward the base of the body member are parallel walls which define angled edges. The edges cam a cable placed between the legs firmly against the base and one leg of the body member.