A sample from the products for the Handle Pipe/top Bridge (2) include: Bolt-washer,6x28, Washer, 10.3m/m, Holder,a, Upper, Bridge,fo*nh-138*.
The most reasonably priced component used on the Z50j Monkey 1988 (j) Finland Handle Pipe/top Bridge (2) is the Bolt-washer,6x28.
With four applications this Bolt-washer,6x28 is the most specified part.