32MM Outside Diameter; 6MM Nominal Thickness; M20 X 1 Thread Size; 19.35MM Thread Pitch Diameter Min; 19.451MM Thread Pitch Diameter Max; MB-4 Lockwasher Part Number; ISO Metric Thread

32MM Outside Diameter; 9MM Nominal Thickness; M20 X 1 Thread Size; 19.35MM Thread Pitch Diameter Min; 19.451MM Thread Pitch Diameter Max; ISO Metric Thread

40MM Outside Diameter; 18MM Nominal Thickness; M20 X 1 Thread Size; 19.35MM Thread Pitch Diameter Min; 19.451MM Thread Pitch Diameter Max; ISO Metric Thread