Patent ID: 8587959

Claim:
An electric module comprising: a fastening device adapted for fastening at least one electric conductor unit to be fastened at the electric module, the fastening device, which is part of the housing of the electric module, comprising: a screw nut compartment adapted to receive a screw nut, the screw nut compartment having: an open first side for inserting at least one of the screw nut and a screw; and a second side arranged opposite to the first side, a stiffening extension formed at the second side of the screw nut compartment wherein the stiffening extension has a non-circular cross section, wherein the electric module includes viscous or solid material, wherein an outer surface of the stiffening extension is in contact with the viscous or solid material, and wherein the non-circular cross-section is shaped for providing a counter-torque in response to a torque from the screw nut, by interacting with the surrounding solid or viscous material.