or loosen accidently ?
A subtle point; The two-band separation tapers- wider than the hexnut span at the root (near the handle) and narrower at the tip. The spring steel support band, in the manner of a good mortise and tenon joint, distribute the compression from the tightened bolts entirely across the band faces- regardless of the width of the central weight stack. We’ve never seen properly tightened bolts (at least 7 turns) work loose. However, we’ve deliberately loosened the bolts and the rattle and different feel immediately gets your attention.
