The metal of the body is very light weight and I was hesitant to use it for fear that it would snap when clamped down. To my surprise none of the four I ordered snapped but, one of the bolts twisted off and the threads on one of the nuts stripped out. I was only using a 1/4" drive ratchet and not torquing down much at all since I was afraid of the body snapping. The bolts and nuts are very low grade. I would not purchase this item again.