Single and Double chainring bolts to mount Absoluteblack chainrings to the crank arms. Bolts have torx T30 interface for greater reliability.
Sometimes there may be a need to file down female nuts to achieve proper fit. This is because each crank has tabs of different thickness and it is not possible to make "one fit all" solution. Bolts itself are fine.
MTB users will not have to do any modifications to bolts or nuts.
Good product . Fast delivery. Recommended