Mountable shaft collars are designed with flats and holes in the outer diameter or holes only to allow for easy mounting of shaft collars to each other or adjacent assemblies. They are commonly found in applications such as cylinders where the collar can be mounted to a base plate. Flats allow for an easy surface to weld the collar. These mountable shaft collars are available in one- and two-piece styles with all the standard benefits of a clamp style design - do not mar the shaft, are indefinitely adjustable, and have higher holding power than set screw types. Both styles come standard with tapped holes. Ruland manufactures mountable shaft collars in 1215 lead-free steel with a black oxide finish, 303 stainless steel, and high-strength 2024 aluminum.