Throttle plate 40mm 78 deg as fitted to Weber
40 IDA3C
40 IDTP3C
40IT
40 IDS
40IDL
40IF
40IDF
40DFI 2 and DFI 6
40DCNF 99-250 and 100-250
40DCN
6400512600 is slightly flatted on each side, and has 5mm screw holes
Plus many others
butterfly mariposa
IDA 3C
IT
IDL
IF
IDF
DCNF