Of all the components that make up this Front Brake (a11/a12) the Bolt-socket,8x40 has the lowest price.
A sample from the products for the Front Brake (a11/a12) include: Bolt-socket,8x40, Bolt,plug, Bolt,hanger, Boot,caliper.
In this schematic the "Bolt,disc Plate,8x15" is used most often.