Wolf Tooth Seatpost Clamp - 34.9mm Bolt-On Ultraviolet Purple. The precision-engineered Seatpost Clamp secures your seatpost and looks good doing it. At the heart of the Wolf Tooth Seatpost Clamp is a custom self-aligning bolt and anchor. The M5 bolt includes spherical washer and mates with a cylindrical anchor barrel. This means that threads are always perfectly aligned preventing binding and ensuring consistent clamping force.

M6 stainless steel bolt with integrated washer

Tool interface - 4mm hex key