Two-piece Clamping Collars are designed for applications that require greater axial load capacity than Set Screw and One-Piece Clamping Collars without marring the shaft. Two-Piece Clamping Collars are available with special quotes for a keyway for keyed shafts. Two-piece, also known as Double Split Collars are available in Black Oxide finish, Stainless Steel, Aluminum, and Zinc plating.