Bolt pattern

I have had two different types of unilugs. My old slots used the big heavy offset washers for 5 on 4 1/2 and 5 on 5. For the Chevy pattern in the middle just a center drilled heavy-*** washer.
The others just use a proper mag lug, bearing on the outside of the lug hole for chevy pattern, on the inside for ford/mopar.