A disc brake caliper includes actuator and reaction portions disposed on opposite sides of a rotor and a bridge portion extending between the actuator and reaction portions and disposed radially outward of the rotor. The actuator portion houses a piston and a lever and defines a mounting flange for a brake actuator. Movement of the lever by the brake actuator causes the piston and the reaction portion to urge brake pads against opposite sides of the rotor. The mounting flange defines a pushrod bore and a fastener bore that receive a pushrod of the actuator and a shank of a fastener extending from the actuator, respectively. The fastener bore has a diameter that varies along at least a portion of a length of the bore beginning from a first end of the bore proximate the actuator and tapering moving towards a second end of the bore distant from the actuator.