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This is my personal junk. From the top:
The bolts designed for the scalloped pressure plate.
The next picture shows why you need that bolt. The shoulder is about to go into the cover and that's what centers the cover. The bolt shoulder centers the cover.
The next picture is a Borg & Beck/Long pressure plate that uses a scalloped pressure ring. This in a clutch done by Cale Aronson at Black Magic Clutches. Those are his fingers that he designed. And you can see I can also adjust for base pressure and counter weight.
The next three are pictures of what a sintered iron disc looks like. Some of what is being called a sintered iron disc is NOT site red iron. It's some bronze metallic **** we called Velvet-Touch or some **** like that way back in the day. You can see that this is an unsprung hub and has no way to even have a marcel spring.
This clutch is used in what was a 12.4X at 109.XX MPH street car. My wife can drive the car.
So...after all this, that's the bolts I use in the pressure plate. I had to think about it. When I bought my new flywheel I asked McLeod to throw in some new pressure plate bolts and they did. For free. So I don't have a part number, but you need a bolt with a long shoulder on it because that shoulder goes through the cover and into the flywheel to line everything up.
Hope this helps.
