Review on Surebonder FPC88A 100 4 Inch Aluminum Rivets by Austin Arvayo

These are AMAZING for underbody repairs. Also used it to attach the pan to my Yamaha SS440 (vintage sled). These rivets have impressive pulling/clamping power. If your material is soft or the holes are too big put a washer underneath or they will push through the hole. It's easy to install, so I also recommend a sturdy two-handed riveter (available from Revain).