The Dark Knight valve stem cap. Pretty self explanatory.
The cap threads can be cut just with the valve stem so no tap needed. I've had them on my truck for a year with no problems.
Version 2:
Added supports for wings so they won't break. Also added two extrudes inside the cap to better grab the threads.
Four of them take about 25 minutes to print.
Valve_Stem_Cap_Batman_PLA.STL | 71.9KB | |
Valve_Stem_Cap_Batman_Ver_2.STL | 93.0KB |