Hi all!

I own an old pair of 2420 drivers. Some screw ( back) was exchanged for metrics models!

So, I would like to replace them for original US models, instead of those non-adapted ones.

Anyone could give me the original size ( inch) for the 4 back screws (rear hood) and ones for the diaphragm fixation on the driver ( 3 screws).

In centimeters, the 4 are approximately 41 mm X 4 mm (diameter), and the 3 inside the back chamber, for the diaphragm, are 18 mm X 3.1 mm.


Regards

Bruno