The studs will be an unaltered #7 to #10 hex headed screw with no more than one slot, uncut, no drilling or hollowing out of the head and the screw to be flush into the tire tightly ,not using a shim or washer to hold it out from the tire. The screw head cannot exceed 3/16” above the tire.
This is the rules for ama d14
I am using kold kutters