Looking for a locking 1/2 in hitch pin for a bike trailer

My old one is rusted out so I was at menards and bought 2 different kinds and both are a little too short for our "thicker" 2 inch hitch receiver. My old one worked fine but is a little rusty so i decided to replace it but having a hell of a time finding one long enough. What kinds are you guys using??

BTW, searching just sent me on a wild goose chase...

 

Bought one of these on Amazon. Works great.

Connor Trailer Hitch Lock - 1/2" and 5/8" Black Nickel Hitch Pins for Class I - V Hitches, 1615320 Receiver Lock

https://www.amazon.com/gp/aw/d/B01MTV2CWB?psc=1&ref=yo_pop_mb_pd_title

 

I have this, can confirm