A sample from the products for the Rear Arm include: Shaft, Pivot, Bolt Hex.w/washer, Plug(xa1), Nut, Self-locking (8bf).
The lowest price component in this Rear Arm parts-list fiche is the Bolt, Flange(jf2).
This Rear Arm diagram displays the required parts for the Xt660r 2006 5vk6 Israel 1e5vk-300e2 Rear Arm.