Constructed from the highest grade alloy used in the industry, our Aluminum/Steel Tri-fold rivets boast a breakload exceeding 1,200 pounds. Compared to common breakloads of 350 pounds, this rivet will set 3x as tight. "Breakload" is what determines how tight a rivet will pull before the mandrel breaks/snaps. With a minimum grip of only .030", this rivet will extend to .500".