With Volvo 20 spline central hub.
(the central hub in the product image is an example as well as the diameter of the disc)
16 holes
8 mm thickness
20 splines M90, Sinter 4-puck, 184 mm
20 splines M90, Sinter 6-puck, 200 mm
20 splines M90, Sinter, 240 mm, Clutch Discs