Locking Happijac Qwik Load Turnbuckles

[ridesabout]

I saw somewhere on this forum that someone recommended locking Qwik Load or Fast Gun turnbuckles. I have the Happijac System Qwik Load turnbuckles and would like to know, if someone has locked them to prevent theft or tampering, how they did it. If a lock was used I would like to know the brand and model. Before adding the Qwik Load latches to the system, I always figured it was too much work to loosen thm or take them. Now it would be easy.

[Dome]

I've had the qwik loads and now have the fast guns. The pin in the fast guns are much bigger.

[Gripnriprod]

It's hard to tell the diameter of the Happijac pin for their Qwik Load turnbuckle but here's a link to the TorkLift locks that may work.