Propane tank lock
I am likely not the first person to think of this, but I came up with a cheap way of securing my propane tanks.
I drilled a hole through one side of the wing nut and another through the hold down bar.
I then put a long shackle padlock though the holes which prevents the wing nut from being loosened.
FAA A&P mechanic, ex-RV dealer parts dept
Retired B-52 Gunner/Flight Examiner, B-52 Crew Chief
2016 Jayco Eagle HT 29.5 FBDS w/ 15,000 BTU AC, 50 amp service, upgraded counter top, thermal pane windows, elec. stab jacks, outside grill, backup camera and MORryde pin box.
2011 GMC 2500HD DURAMAX/ ALLISON