I have managed to mount my Mako on the BCD.
Required items:
- two screws with conic head. head was 8mm in diameter, screw was 4mm in diameter, total length (including head) 15mm. They were a little longer, ~10mm I think would be perfect (but I didn't have available; I will replace them later)
- two nuts
- 4 collars that corrected the screw length (not needed if you find the right screw)
Required tools:
- some sharp tool to make holes in plastic; no need to heat the tool if it is sharp, because the plastic is soft.
- phillips screwdriver for the sheath screws
- screwdriver for the mounting screws.
I have first removed the rubber bands from the sheath. Then, I have unscrewed 3 small screws. By doing this, I have split the sheath in two parts (the back and the front part).
On my BCD, the distance between the mounting holes is 10cm. Luckily, there is a 10cm distance between the plastic wings that hold the rubber bands (so the nut is where the rubber band goes, without touching the blade at all).
I marked then drilled two 5 mm holes into the rubber-band fixing plastic wings (as you can see in the photo), then just fixed the screws.
The placing is perfect, the screws are not touching the blade at all. It looks like it was made to be put on a BCD.
The screw:
How it looks:
Top-down view:
Inside pocket view: