GW, 1/16-27 NPT allen pipe plug. Chrome

Used to plug oil pumps on some models etc.
NPT threads are 'self sealing' since they are slightly tapered, the diameter slowly becomes bigger towards to top.
- 7.6mm is the approx. diameter of this plug in the middle of the plug, including the thread itself.
Note: For easier identification of the correct plug, the diameter (approximately measured in the middle of the plug, including the thread itself) is given in millimeters.
Note: Pipe plug sizes are totally different when compared to common US bolt sizes.