and an incredible tool to have at your disposal. But that doesn’t mean they can’t be used to have a little fun, as demonstrated by [Oleg Pevtsov] who made a bidirectional bolt as a machining ...

There is an upper value of torque beyond which the bolt can break when tightening. More likely, this upper value of torque will be reached after the bolt has been in service for a length of time.

The main concerns are understood to centre around the type of tools used to tighten the planes’ bolts, and the application of what is known as “proper torque”. This is the specified ...