Ping driver head washer ?

Just taken the head off my G400 and the screw fell out.

I remember Titleist have rubber washers to hold the screw in place but can't remember if there was/ should be the same on a ping ?

If you screw the bolt out while the shaft is still in the head the rubber washer can stick on the inside of the head.
Just check If not it might be loose in the head!
The washer is only there to retain the bolt so if you put your shaft back on it will be fine without it.