The Bolt, With Washer(6h4) is the most widely applied product in the 40(MH/TLR/50ER)Y 2000 UPPER CASING ( six times ).
This Upper Casing diagram displays the required parts for the 40(mh/tlr/50er)y 2000 Upper Casing.
The Washer(6a1) is the lowest priced item on this Upper Casing schematic.