Your Guide To Fastening Rivets
If you are going to use fastening rivets, you are going to want to use those with certain features and benefits. There are dozens of different variations of rivets in use, and some of them are better for certain applications and others are better for other applications. It is important that you use high quality hardware for your project, so following are a few characteristics you need to look for in a good rivet.
Above all else, you are going to need hardware that is the most reliable, high strength structural fastener type in the industry, with visual inspectability across the globe today. Some of the good ones feature locking collars with different technologies, which provides for more reliable joint integrity. Be sure that those that you choose meet the requirements of PS-CMR-3000 for durability, performance and safety.
Some of the best fastening rivets on the market consist of four components which are assembled as a single unit. These are: 1. A stem which is fully serrated with a break notch, integral grip adjustment cone and shear ring 2. A separate, visible and inspectable locking collar that mechanically locks the stem to the sleeve of the rivet 3. A driving anvil to ensure a visible mechanical lock is in place with every single fastener installation 4. A rivet sleeve with recess in the head to best receive the locking collar
As far as installation is concerned, the rivet is going to be inserted into the prepared hole, and the installation tool is going to be slipped over the stem. Make sure you apply a firm, steady pressure, which will seat the head. Then, the installation tool is actuated. The pulling head is going to hold the sleeve in place as it begins to pull the rivet stem into it.
This pulling is going to cause the stem shear ring to upset the sleeve and form the bulbed blind head. It also is going to cause the stem shear ring to shear from the main body of the stem as it continues to move through the sleeve, which allows the fastener to accommodate a minimum of 1/16 variation in structure thickness. Next, the locking collar contacts the driving anvil, and deforms into the fastening rivet sleeve head recess.
Finally, the locking collar fills the rivet sleeve head and recess, which locks them securely together. Continued pulling by the installation tool you will be using will cause the stem to fracture at the break notch, and this provides a burr free, flush and beautiful rivet installation.
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