Tourque arm

[joebloggs]

Thanks chaps re- torque and nut supplier -- but my those are expensive I think though I have found the correct name for the type after risticuss pointed me in the right direction, they are called Satytite

Another question-- why would all metal staytite nuts be used on the arm as opposed to nylon lock ones

Just guessing tbh but I would say all metal can be undone and tightened many times while the nylock would need replacing more frequently