M8 knob for Festool MFT dog

I turned precision dogs on the lathe, for my Festool MFT.
They are fine but they missed a knob ;)

For the bolt, an M8x15 is perfect but I also used M8x20 with success.

2019-01 - Update !
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There is a new junction piece that accepts either an M8 bolt or an M8 nut.