Originally Posted by moparx
i'm almost betting the cut marks allow the bolt head to deform somewhat, affecting the clamping force.

From the Earnest technical bulletin that "Darkbreeze" linked.

Flywheel_place-bolts.JPG

1993 Daytona, 5.50 at 130mph (1/8) 1.19 sixty ft (PG). Link to 572 B1 - Part 1