A sample from the products for the E-18 include: Washer,head,8mm, Gauge,oil Level, Washer,plain, 6mm, Bolt,cylinderstud.
The Washer,plain, 6mm is the lowest priced item on this E-18 schematic.
The Bolt,cylinderstud is the most widely applied product in the CB450K3 JAPAN E-18 ( four times ).