FITS later TYPE 16PB with METRIC 12.3mm hole in casing of the caliper, which was used on some later 2000 and all 2200 

Hole in casing is 12.3mm

FOR  TYPE 16P and early TYPE 16PB with IMPERIAL 11.0mm hole in casing which was used on most 2000 and all 3500 front calipers. see part number 560198 

AS MANY CARS HAVE HAD CALIPERS SWAPPED OVER THE YEARS, YOU WILL NEED TO CHECK CLOSELY WHICH BOLTS ARE FITTED.

PLEASE NOTE THE THREAD IS 7/16 UNF IN BOTH PARTS, IT IS ONLY THE STRAIGHT SHANK OF THE SPECIAL BOLT WHICH IS DIFFFERENT  BECAUSE OF THE HOLE SIZE IN THE CALIPER BODY