A sample from the products for the Cylinder (model K1) include: O Ring,cylinder Head No.2, Solenoid Valve Assy, Stud Bolt (l:60), Nut.
This part-list fiche shows all the components that make up the Rm250 2006 (k6) Usa (e03) Cylinder (model K1) .
In this schematic the "Nut" is used most often.