[TowerTalk] Ham II rotor brake to gearbox screws

[Warren Volz]

Hi,

I'm rebuilding a Ham II rotor and am trying to determine the best 
replacement for the 1/4-20 screws that hold the brake housing to the 
gearbox. The ones that came with it have rusted quite a bit and now 
seems like a good time to replace them. They appear to be "fillister" 
screws but these are not available locally so I was planning to use 
standard round / pan head zinc screws. Has anyone had to replace these 
and if so what did you use?

Thanks for your help.

-Warren KD5YPH