Arbor Nut

1-1/4″ Arbor Nut (PanelMASTER & RailMASTER Compatible) – High-Quality Replacement Hardware

An arbor nut is a precision-machined fastener designed to securely attach rotating components, such as saw blades, grinding wheels, or dado stacks, to a machine’s arbor shaft. To resist the rotational forces generated by power tools, many table saws and radial arm saws use left-hand-threaded arbor nuts, which help prevent the nut from loosening during operation.