The Wolf Tooth Waveform Pedals rotate around 304 stainless steel axles, held in place by corresponding axle bolts.
The bolts for the left and right pedals use a different thread pattern, with the right axle bolt using a reverse thread. Consequently, the left side axle bolt has a smooth head, while the right side axle bolt has a knurled head, making it easy to distinguish between the two at a glace or touch.
Worn bolts can be easily unscrewed using a 3mm hex wrench, then replaced with these genuine spares, which come as pair of one left bolt and one right.