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Rivet Backup Washers are for use with Pop (Blind) Rivets, particularly in Stainless Steel or other soft metals. Rivet Backup Washers create a larger installed diameter which creates a larger surface area and prevents pull through by distributing force over a larger area than a standard blind rivet.
It is recommended that you do not mix materials when using a Rivet Backup Washer. For example, if you are using a Stainless Steel Pop Rivet, use a Stainless Steel Backing Washer. Mixing materials can create installation problems.
Not sure what material you need? Check out our Material Guide to find the right material for your needs!
How to Install a Rivet Backup Washer![]() |
Rivet Backup Washer Installation & Large Flange Comparison TranscriptScroll Down To Continue Reading Bob: Welcome back to Albany County Fasteners, Fasteners 101. I'm Bob and today we're going to talk about rivet washers and I'm going to demonstrate installing a rivet washer. I have one right here. These are kind of hard to see. Alright so, when you're going to use a rivet washer (when you're calculating your gap) you need to also include the calculation for the rivet washer: the thickness of the rivet washer. If you don't calculate that then you're going to order the wrong rivet. So you need to include the thickness of the rivet washer into your calculation. I'm showing you here what the rivet washer looks like close up. So you can see the circumference of the washer, how much more you get. You get about an eighth of an inch I would say, approximately, depending on the washer. This is a number six washer along with a number six or a 6-6 pop rivet. So this will show you exactly how its installed and where it goes. So you don't take a rivet washer and put it on the front here. It just doesn't work. The other thing I just wanted to show you was a wide flange rivet. So a wide flange and a regular flange, or standard flange, you can see that a wide flange has a wider circumference. So the only reason that I could understand that someone would use a backup washer, a rivet backup washer, on their rivet would be for a couple of reasons: one is the wide flange would be too wide or they were looking for more support at the flange area instead of just using a wide flange rivet, but that's up to your application. That will dictate as to which rivet you're going to use. So now I'm going to install the rivet with the rivet washer attached. So I'm going to put my rivet inside my tool. I have the rivet washer I'm going to slide on to the hat, and we're going to install this. So my hole is a little...I'm going to adjust it. Okay. Let's try this again. Okay I'm gonna crimp... I'm also going to install right now the wide flange. Just to show you-I'm not going to put this on-but I'm just going to show it to you that putting a rivet washer for a six, a number six rivet washer, on a wide flange or large flange, it just doesn't meet the circumference. Unless you're looking for some type of back up to the rivet to make it stronger. You can do that but I don't think it's going to do much for you, but I'm going to install this one right next to it so you can see the difference between them. And that would be without a rivet washer attached. So this is the one that is a large flange with no rivet washer and this one is the standard rivet with the rivet washer attached. You can see how that looks on the side view. Like that. Okay and then this is the back. That's basically the demonstration of a rivet washer being installed. |
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