This shot shows the home made bolts I made to deliver power to my turntable roads. This is not on the scenic portion of the layout so it doesn’t need to be pretty. Power to the “bolt” units is delivered via wire that is soldereded to the base of each unit run up through holes near the rear of the units. Power is delivered to the rails on the table via solid lengths of NS wire. The bases of the bolt units are 25mm wide.