Abstract: A wheelnut for securing a wheel to a motor vehicle axle. The wheelnut includes a body having a longitudinal axis, the nut body also having an axial threaded aperture and a pair of ends, one end being in the form of a conical external surface and the other end has wrench flats facilitating the application of torque forces through the wrench flats to the nut body. The wheel has a nut seat surface configured to receive the conical external surface in surface-to-surface engagement, so that a clamping force of increasing magnitude will be applied to the wheel at the seat in response to the application of torque force on the wheel nut.