Review on Rivet Flange Mandrel Aluminum Diameter by Adam Nelson

I needed these for my boat and ordered them because they were "blind rivets". In other words, once you place them, you can't reach the other side and throw the puck in. They're 3/16", so just pre-drill a hole that size. I used a manual rivet gun and these rivets are strong and take a lot of effort to "pop" them in place. Well. Very strong to the touch and long enough to reach through the sheet metal to the other side. I've ordered enough to last probably a year. The price was great and a lot cheaper than the brick and mortar stock if you can find it. Very happy with this purchase.