Chrome 1/2" Allen Key Pipe Plug for Harley-Davidson

NPT threads are "self-sealing" as they are slightly tapered and the diameter increases slowly upward.
- 20.8 mm is the approximate diameter of this plug in the middle, including the thread itself.
Note: To more easily identify the correct plug, the diameter (measured approximately at the center of the plug, including the thread itself) is provided in millimeters.
Note: Pipe plug sizes are completely different compared to common US bolt sizes.
5 units