os .21 rg question
 

hello guys. i have an os 21 rg engine that i got used and its missing a couple of head screws. would you guys khow what size they would be. i try using some screws from a dead sts and they are to big. or if you khow of any place where i can order them let me khow, thanks

http://downloads.hobbico.com/evpl/osm/ev13610-13611.pdf

shows the heads screws are 2.6x15mm there is a part number in there that you could prolly order the OEM replacements

The O.S. replacement part number is 22447005. This package includes all 6 head screws and the 4 back plate screws. Unfortunately, I don't know the size of them. I just have an exploded view drawing with part numbers only.

http://www3.towerhobbies.com/cgi-bin...7005&search=Go

^^ Link to the part at Tower

thank you guys you have been very helpfull. thats just what i needed.