Alright, these are Suzuki ITB's, I'm trying to take out the throttle plates to modifiy the shaft. The screws in there are philips button head type. Anyway, I can't get them out without stripping the head(it gets half-way out then just starts stripping). I used a screw extractor to get them out. I want to convert to a hex socket type bolt but don't know which style would be good for a throttle body: Button head style or a low-profile cap sytle? Mike B, Cal, can you guys chime in?