International series collars have metric outer diameter and width dimensions.
They are supplied with a metric screw allowing users to have an inch bore collar that can be installed with metric tools. This one-piece international series shaft collar has a 1. Shaft Collar, 1pc Clamp, Bore 1.Ruland clamp style shaft collars do not mar the shaft, are infinitely adjustable, and have superior holding power when compared to set screw collars.