To create a simple box with a bolt hole and a nutcatch: ...

This perplexed me; how could the bolt not just spin in the hole? I got my answer when I saw something fall out of the wrench after the ironworker removed it from the tightened connection.

The default is not to create a thread and instead have the outer diameter for bolts or the inner diameter for threaded holes and nuts. The package includes threaded and through holes to screw the ...