Old Mec 600jr question - charge bar
I picked up a old used 600 jr recently but it did not come with a charge bar. I ordered the charge bar and powder bushing but realized after it arrived that I do not have the hex screw that goes into the powder bar to stop it as it slides from side to side.
Does anyone know what size / thread type this should be? I am going to go to my local hardware store and pick one up tonight but don't have the bar with me to size it up.