Rivet Nuts, 100Pcs M5 Rivet Nuts,Zinc Plated Finish Carbon Steel Flat Head Rivnut Threaded Insert

Make job easy instead of using rivets faster to remove screws or bolts

Everything I expected.I used 10 of these on my tractors mowing deck to fasten the belt and pulley guards.Working Great!

👍👍

work great

Easy to install with the right tool. Not much else to say.

These come in all sizes from tiny to huge, and I didn't even know about these things until recently. I had a metal cabinet that I wanted to put casters on, but the problem was the other side, on the inside of the cabinet, was inaccessible. So the simple solution of a nut and bolt wouldn't work, and simply screwing it in wouldn't either because it was sheet metal (nothing to grab onto). All I could think of was building a plywood base to set it on, with the casters attached.Then with a lot of online research, ran into Rivet Nuts (AKA Rivnuts). I got the tool with the mandrels, the two handle type (like a butterfly style wine bottle opener) as opposed to the trigger type. You drill a hole the size of the cylinder, screw the rivnut onto the proper size mandrel which is attached to the tool, insert it into the hole, close the handles. Now there's a place to screw in a bolt and tighten it without needing access to the other side. It couldn't be simpler and can't understand why more people don't know about them.Some people leave bad reviews for rivnuts, the tool or both, usually with them breaking. I think it has to do with the installation of them in most cases, and since it's so simple to do, there's little help to be had online, in part due to it not being a well known tool. So to use these, I suggest the following. Once you screw the rivnut on the tool while in the completely "closed" position - the position of the handles once completely squeezing them - twist the rivnut a half turn and back it off being flush against the mandrel.In most cases, rivnuts are used on something quite thin, so it doesn't need to be much. For the thick sheet metal I had, a half turn was enough (~1 mm). It's counterintuitive because you want to tighten it to be secure, but you don't want to break the tool or the rivnut. Once you've installed it, unscrew the tool from the rivnut, and see if it spins where you attached it. If not, that should be good. If it does, you might need to screw the tool back on it, close that gap a bit, and squeeze again. You don't need to do it this way, but you'll need practice to know when to stop squeezing if you completely screw the rivnut onto the mandrel to prevent breakage, which is just a hair past the point where you start to feel the resistance. Once you start to screw the bolts into the rivnut, the way rivnuts work, they will automatically tighten some more as you tighten the bolt. You can use a little more force with the bolts because the tool was the weak link, but not too much. Rivnuts can still break if you use too much force. The goal is pretty snug, but not too tight.If you can experiment on something that you can see the other side of, install a few and you'll see how they work and get some practice, because breaking these things, especially without access to the other side, are a nightmare to remove, and usually involves drilling them out.ANYWAY, given the above, these worked fine, are securely holding casters on a relatively heavy cabinet, and have no complaints.

I use a river setter from HF, but they never have the inserts for separate purchase. These were a great find. I have been able to put threaded inserts into sheet metal and even used them to join two pieces of sheet in a pinch. Really good find.

The rivets worked very well for my project but I was shorted one rivet in the pack.