Foil Mounting Bolt and T-Nut Size Chart (tap to open)
Bolt length depends on your board's track depth and your mast plate, so check your existing bolts before ordering.
These sizes are for the hardware that mounts your foil to your board. Mounting bolts typically come in M6, M7 or M8, and each bolt needs a T-nut with the same thread. T-nuts typically come in stainless steel, titanium or brass.
Brand
Bolt
T-nut
Notes
Armstrong: Performance, Performance MKII, Performance X, all other MKII
M7 x 26mm
M7
Armstrong: older generation
M6 x 25mm
M6
Uses proprietary washers
Axis
M8 x 25mm
M8
Countersunk Torx
Duotone
M8 x 25mm
M8
F-One
M6 x 25mm
M6
M6 x 16mm for topsheet boards
KT
M8 x 30mm
M8
Torx
Lift: foils
M8 x 25mm
M8
Lift: eFoil 1 to 4
M8
None
Threads into inserts in the board. LIFT4 uses M8 x 16mm
Liquid Force
M8
M8
Check your length
Naish
M6 x 25mm
M6
M6 x 30mm for Abracadabra and carbon plates
North
M8 x 25mm
M8
M8 x 23mm and M8 x 30mm also exist, depending on the board
Slingshot
M8 x 25mm
M8
Older boards used M8 x 30mm. Ghost Whisper uses its own hardware
