Having the right locknut for vibration and motion control is essential for your machine tool spindle and ball screw. At All World, we offer a wide range of adjustable locknuts in various bore sizes, with both radial and axial locking options from trusted manufacturers like FKD. We also offer cross-references for SKF and Spieth locknuts. Need help finding the right locknut? Our customer service team is here to assist you and can arrange same-day shipping.