I've lost the white spacer that is part of 107-11470-01 for the magnetic camera mount

[palfvin]

I've lost the little roundish white plastic piece that the screw goes through before it goes into the wall anchor. It's a very odd shape and nothing that I believe I could find in a hardware store. Arlo says they cannot send or sell me the kit with these three little pieces, let alone the little white piece. I would need to purchase a new mount, which seems ridiculous. I can't figure out if this piece serves any purpose other then keeping you from screwing the screw too far into the anchor. Anybody know?