We are a non-profit charity fundraising team, lots of portable BBQ trailers, lots of volunteers who tow them with several of our vehicles, as well as the volunteers vehicles. Can't fire or fine a volunteer! The reason I started this thread is because I have a special need for a pin, that is removed every time we use this particular piece of equipment. It is a crawfish pot 6 feet in diameter. The lid slides back and forth, powered by a garage door opener. The lid must be strapped down when towing. We are constantly loosing or forgetting straps, so I made a stop that pins in front of the roller on the lid. It got lost the first time it went to an event. So I made another and chained it to the trailer. Now the issue is keeping the pin and clip. My helper suggested the heavy duty fishing leader idea as well(thanks plout), I think that will be the solution. I'll snap a picture of this rig, you guys will get a kick out of it.