Foot strap screws for most Cobra Manufactured boards are either M6 or M7 , depending upon the make and the age. If you are unsure, best to remove a screw and check the width and length of the thread . They both have a PH3 Philips screwdriver head. Starboard now use Torx headed screws, as per Item 2.

If you have stripped an M6 board plug hole, the M7 can be used as an oversize repair screw (JP used to supply them as a Repair Spare with their boards). If you need help, just Ask!

1.  MFC 28mm x M7  PH3 (same design as Starboard, JP )

2. Starboard 28mm x M7 Philips TORX head 

3. MFC 28mm x M6  PH3

4. Severne 30mm x M6  Allen Key (4mm)