Improved studs for connecting a wheel and a brake element to a motor vehicle wheel hub unit

摘要

A stud comprises a head (11) and a stem (12) with a threaded end length (13) and a length having an axial knurling (15) proximate to the head and adapted to be driven with radial interference into an axial bore (16) of a radial flange portion (17) fast for rotation with the hub of a motor vehicle wheel. The stud comprises at least one knurled surface (21, 21a, 21b, 21c) having an area other than zero in a projection on a plane perpendicular to the longitudinal axis of the stud. The knurled surface is adapted to co-operate with the radial flange portion (17) for preventing rotation of the stud.