It includes seven of each fine thread bolts 1/2", 3/4" and 1.00" in steel, thirty eight AN steel washers, eighteen .125" thick steel weight spacers, six .225" steel weight spacers, and twelve steel nuts in fine thread.
With this counterweight kit it will make the racers experience at the track a day to remember and maybe put another trophy on the mantel. Bolts and nuts are 1/4".