My electrical panel is in the garage, which is drywalled. There are some available knock-outs in the side of the panel wall and this is mounted between the supporting studs. I want to pull the metal plug out, drill through the 2x6 and run 4, 6gauge wires to a 50 amp 4-prong plug that will be mounted in an external metal box directly beside the panel.
My questions are this:
Would this be standard practice, recognizing regional codes vary?
Are there issues with the wires running "wild" as they leave the knock-out hole which won't have a sleeve of any type?
The wires will go through the 2x6 bend towards the inside of the garage and enter the back of an external box that will house the 4-prong plug?
I won't have a stud to mount this box to so can I use molly-type drywall fixers to hold the box?