screw fixing the HM plate in size M3x5 is recommended, among others for profile cutters from the FT404 group
the head of the screw fixing the HM plate has a TORX socket size T15
imbus screw size M3x8 fixing ball bearing is recommended among others for all profile router bits from the FT404 group
high quality screw accessories / standards for mounting ball bearings in shank cutters from the FT group