The twenty Rm250z 2003 (k3) Usa (e03) Steering Stem (model K6) component parts are all listed in this schematic.
A sample from the products for the Steering Stem (model K6) include: Nut,stem Head, Bearing(30x52x16), Spacer, Bolt.
The component with the lowest price in the STEERING STEM (MODEL K6) schematic is the Bolt(6x20.5).