The most reasonably priced component used on the Gs1100e 1983 (d) Usa (e03) Cam Chain (model D) is the Screw.
Check out any of the twenty Cam Chain (model D) components enlisted.
A sample from the products for the Cam Chain (model D) include: Washer,8.5x16x, Screw, Holder,cam Chain Guide, O-ring.