Joe : i am well aware with this type of cover and iam not crazy with at all{ dang i am swearing myself how to tranfser the photo here so ican show you more clear idea with it ] i know the Raco company did have diffrent cover for 4 inch octganal box it have 3 screw holes for it , 2 for yoke and center one to hold the repecticale but for some reason i did look at the catalog book it only show the same as Joe's photo have it but i am sure there is other company do make it with 3 holes there
Merci, Marc