WARNING: This page is about a different car, the 2010 Nissan Sentra. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Rear Disc Brake Replacement Components With Torque Specifications
Courtesy of NISSAN MOTOR CO., U.S.A.
CAUTION:
Clean dust with a vacuum dust collector. Do not blow with compressed air.
Make sure parking brake lever is released completely.