Array of 4 rectangularly shaped silicon nitride cantilevers with spring constants suitable for contact mode applications like Contact AFM, Force Spectroscopy, Pulsed Force, Force Volume etc.. The relatively high torsional sensitivity makes this cantilever particularly suitable for Lateral Force or Friction Force Microscopy (LFM). RC800PB cantilevers are Au coated from both sides. The Au coating on the tip side allows users to chemically modify these cantilevers with molecules containing e.g. thiol end groups or other groups strongly binding to gold surfaces. The Au layer is deposited onto an intermediate Cr layer for improved adhesion.