[ARC5] Screw Size

[D C *Mac* Macdonald]

What size are the screws that hold cover and bottom plates? 
 
I thought I had lots, but can't find any, let alone enough to 
put several T-22s back together to ship them to a new owner. 
I have been turning the shack and garage almost upside down 
looking for them and just need to see if I can buy a box of 
100 at Ace Hardware. 
 
I don't even know if they were present when I acquired these 
transmitters several years (decades?) ago.
  
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* 73 - Mac, K2GKK/5 * 
* k2gkk at hotmail.com * 
* (Since 30 Nov 53) * 
* Oklahoma City, OK * 
* USAF, Ret (61-81) * 
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