We specifically made two Universal Nuts, one for each of the standard 5/8” (5/8-11) and metric M14 14mm threaded shaft sizes found on angle grinders worldwide. The KAT Universal Nut for both 5/8” and 14mm threaded shafts makes tandem combinations possible. With its 21mm hex head, it also replaces the different manufacturers’ size 2 pin spanner nuts. For adjustment of a simple and secure fit, use our made-to-fit Universal Wrench, or your wrench, socket set or pliers. The Universal Nut and Wrench secure most disc accessories to any manufacturer’s power tools that have either a 5/8” or 14mm spindle thread shaft. This includes electric and pneumatic angle grinders, sander/polishers and sander/grinders ranging from 4-1/2” to 9” (115mm to 230mm).