Our Iwata shaft collars are completely interchangeable to other industry standard shaft collars. We offer these as a rigid single piece set screw clamp or a one-piece single split clamp design. Most designs are available in steel, stainless steel, and aluminum. Shaft collars with 3 countersunk holes are useful for environments that allow the fixing of sprockets or mounting brackets. The three holes are through and unthreaded. Shaft collars with 3 countersunk holes are supplied in a wide range of dimensions to fit most shafts. Buy Iwata shaft collars with 3 countersunk holes from your trusted supplier here in Singapore!