The joints between sections on Paetzold instruments were originally held with a wing nut and washer as illustrated above. This set up is perfectly serviceable but can be frustrating when getting everything lined up including the washers. For this reason Paetzold changed to the Miniwing nut. This wing nut has an integrated washer which spreads the load when tightening. The washer doesn’t flop about, making it easier to align and secure the sections together. These wing nuts can be retro fitted onto all Paetzold instruments. (N.B. some of the earlier instruments had longer screws which may need shortening). There are two thread sizes available so please use the drop down menu when ordering.