When we bought our scamp this spring, one item that I noticed was that the door hold back was pulling out of the door side. I figured easy peasy, just re-rivet it. Then I noticed how rusty the original one was, in the crevices and such. Well I'll just buy a beautiful new SS one from Scamp and rivet that on. I did and it was a thing of wonder, until I tried to use it the first time. The new one had a hook that sticks straight out where as the original has a 30* bend. So the new one wouldn't work in the original mounting holes.

I tried to bend it some, but that SS wasn't having any of that. We ended up using a jury rigged system of carabiners and hooks to make it work. I had no intention of drilling more holes in the scamp to accommodate the new fixture.  Well on it's first outing the new rivets on the door side pulled out again. Back to the drawing board. 

My first idea had been to use these clever things called Rivnuts to mount the pieces. They are a rivet that has a threaded core on once riveted into place you can use a machine screw to attach the hardware. I had skipped it the first time because you have to buy another tool. But now I thought it was time to get serious. After getting the right sized rivnuts, an M4 fit the existing holes nicely, buying some M4 SS machine screws and removing all the old (new) rivets, I was ready to attach the new hardware. 

The door skin is not very thick which of course is part of the issue, but I adjusted the tool and set the rivnuts, then screwed on the door piece.

I think if the rivnuts pull out I will have to go up a size and try again in fresh meat. The smeary stuff was some butyl tape I had tried to waterpoof the rivets with. The hook part on the trailer hull is in much thicker fiberglass so I know why that side doesn't pull out. 

So the new catch and the old hook are working together just fine. I wire wheeled the hook and used some black paint because that's what was at hand. The good thing is, take out 4 screws and I can paint the hook off white after the next trip to lowes.  Lets see how this system survives in the real world of wind and clumsy hands.