you can also shorten a bolt to custom length by threading a matching nut onto it, cutting the bolt to length, grinding a bevel onto the fresh cut ( easiest with a bench grinder ) and then taking the nut off.
the nut will act as a die to straighten the threads out. or you can use a real die.
The way to crush the bourgeoisie is to grind them between the millstones of taxation and inflation.
Government schooling is about "the perfect organization of the hive."
H.H. Goddard, Human Efficiency (1920)