T-nut sizing for Axis Mini Dart

So my axis mini dart works w code t-nuts that are a lil narrower than unifoil ones? The track doesnt allow unifoil tnuts. Does anyone know the size t-nut I should be looking for? Or if there is a wingbolt set that would fit?

A mate received he’s dart new, one track had been squeezed during manufacture and the track nuts wouldn’t fit that side, replaced under warranty. Measure the end of the tracks and then the middle, if the middle is narrower than the ends you have a squeezed track.