Sorry for the distraction. Back to the subject....As suggested by others, just get a clutch head screw driver set, for there are other sized clutch head screws on your truck. Tons of suppliers have them.
Craig
My '50 Chevy 3100 5 window, '62-235cu, 3:55 rear
My truck ....... Respect The Rust
If I'm not working on my truck, '65 m00stang or VW camper, I'm fishing with the wife or smoking Salmon.