Finally, a top quality mini pot that's as good as the large ones. 550k knurled shaft mini potentiometer, (16MM) ± 9% tolerance, bushing 3/8-32 threads, 3/8 in. bushing height, shaft .238 in. (6.3mm) diameter 24 splines, 3/8 in. shaft length, requires 3/8 in. mounting hole. These are developed using ±9% tolerances and a value at 10% over the standard ohms rating (550 kohms for 500). This ensures not only optimum performance but guarantees your potentiometers will always be at least the value stated. (Sold individually) Measurements: Tolerance = ±9% Can Size = 5/8 in. radius Bushing Threads = 3/8-32 Hole size requirement = 3/8 in. Resistance Options: 550 kohm Shaft: Split Shaft (24 Tooth) Bushing Length: Standard Bushing 3/8 in.