Carr Lane swing clamps are available in three sizes, with either inch or metric threads: 5/8" diameter, 5/16-18 and M8; 7/8" diameter, 1/2-13 and M12; and 1-1/8" diameter, 5/8-11 and M16. Materials vary by component and type and consist of 12L14 steel with black oxide finish, steel, spring steel, 1144 steel, 1045 steel, etc.