3/8" x 1 1/2 carriage bolt with a 5/16" washer on outer frame should do the trick. Just grabbed a handful and the key shaped slot on the frame "should" allow enough space to fit the carriage bolt head. Worst case is minor grinding. Then below the head is square and very very close to the width of the slot in the frame. So it won't turn. Will it when I push upwardsm and the square part is too high? Of course. So just use vise grips to pull down a bit. Should work fine. In theory.![1000001142.jpg 1000001142.jpg](https://www.expeditionforum.com/data/attachments/79/79585-fcaa827465278ddb45a427e72cf833ce.jpg)
![1000001142.jpg 1000001142.jpg](https://www.expeditionforum.com/data/attachments/79/79585-fcaa827465278ddb45a427e72cf833ce.jpg)