Sweetpea, the steel bolt is at least 100 times stronger than the wood it is screwed into

The nylon bolt should work fine. Considering what a wing panel for a 35% weighs, maybe 3 lbs at most, the wing would have to experience upwards of 50 g's spanwise, to approach the bolt's failure point. Even a blender done at full bore wouldn't generate that kind of accel on a panel in the span direction

MattK