Screw washer for the Beiter clicker.
Key features:
- The screw washer is specific for the clicker thread.
- The M4 washer is only available in a flat, clear version.
- For the UNC 6-32 thread you may choose between the flat blue or the tall dark green one.
- The UNC 4-40 thread is available as a flat black or a tall violet version.