thirty-seven components are shown in this St1300 Paneuropean 2009 (9) European Direct Sales / Mme Grab Rail exploded diagram.
A sample from the products for the Grab Rail include: Openner Comp,seat, Nut,special,6x7, Screw,special,6x1, E.ring 4.
The component with the lowest price in the GRAB RAIL schematic is the Washer,plain, 6mm.