Ducati SCRAMBLER 800 Workshop Manual page 323

Apply the recommended grease to the thread and underside of calliper retaining screws (2).
Pre-tighten the two screws (2) to a torque of 2 Nm ± 10%.
Work several times on the brake lever to allow the calliper to settle.
Hold the brake lever pulled and simultaneously tighten the two screws (2) to a torque of 45 Nm ± 5%.