Originally Posted by LEADERS EDGE:
Couple of things.....are they all the same mfg? If so....it's possible they are using 6061 material instead of something like 2024. It's also possible that they are too thin in the area where they tradition to the bolt area. If it's different brands....is it possible you are pinching them all of the way closed?
They have all been the same brand. I don't know what type of aluminum they are but I ordered some that are 2024. I assume those should be pretty strong?