- Nut, kingpin
- Fastens the wheel hub and brake drum to the stub axle, maintaining correct preload. Also known as hub nut, spindle nut, or axle-end nut in catalogs.
- OPEL - Kadett, Vectra A, Ascona, Corsa; AUDI - A6, 100; VAUXHALL - Cavalier, Astra; VW - Transporter; BMW - 3, 5; ...