Sometimes it’s the most straightforward of hacks which are also the most satisfying, and so it is that we’d like to draw your attention to [mikeandmertle]’s PVC thumb nuts. They provide a cheap an ...

The Permanentech self-locking vibration-proof nut and bolt fastener has a unique nut that locks in at predetermined intervals along the notched bolt, removing the chance for vibration to loosen the ...

The free-spinning locknut turns freely onto a bolt until seated against a base. Further tightening of the nut produces locking action. Operating principles of all these nuts are similar. When the ...