This is the Pivot Rivet that secures the Vent Wing Window to the Upper Bracket of the Door. Includes the Rivet and Fiber Washer to do either the Driver's Side or the Passenger's Side. Fits Standard Beetle October 1952-1977 (Fits "Zwitter" Beetle's Yes) and also Bus 1953-1979 with Chassis starting at #20-041,712.