Adding USB outlets at the 120VAC plugs

went to replace my outlets today with ones that have built in USB charging ports. For some unknown reason the outlet is riveted to the box, not screwed on. That's a first for me, I'll have to rivet the new ones in too: no threaded part to use. Anyone know what rivet to use? My 1/8" ones are too big, the ones used on the boat have a large head on them too.
Past owner of a 2003 342FV
PC BYC, Holland, MI
PC BYC, Holland, MI
Comments
Go Steelers!!!