washer stainless steel A4
This washer placed on the bridge of the board will distribute the efforts of the screw on your board.
No need to add one, if you have a KETOS Board.
This washer is given when you buy a mast without board.
As we were not finding on the market what we wanted, we had to machine a washer stainless steel.
- for screw M6
- countersunk head
- diameter 27.8