Pickup narrow bed holes in bed plate

[wrndln]

I have a repro steel plate that is used in the center of the narrow bed pickup box. It only has the 6 holes around the flanges and not the two holes in the center. There are suppose to be two holes for rivets that fasten webbing to the underside of the plate to prevent squeaking between the metal plate and the rear frame crossmember. I have a picture of the underside of an original bed I got several years ago. I am hoping someone can measure the hole dimensions on their original pickup bed and post them here on Fordbarn. It appears that the holes are in line with the 2 side flange holes, but they maybe off slightly. I am pasting in a couple pictures of a well used original pickup box showing the webbing and holes in it. Thanks in advance for any help.
Rusty Nelson