The mandrel can be thrown away after you're done. Pull on the gun's trigger to pull the mandrel through. Insert your rivet into your pre-drilled holeįirmly press your rivet into the pre-drilled hole, with the nub completely clearing the hole. The "nub" end of the rivet will be pointing away from the gun. The head should be pushed firmly up against the end of the gun. The blind rivet gets inserted into the riveting gun via the mandrel. So if you are riveting together two pieces of aluminum which are each 3mm, you should add them together and multiply by 1.5 to give you 9mm for your rivet length. The length of your rivet should be at least 1.5 times the thickness of both of your work pieces together. Multi-grip: These rivets are designed for when you don’t know how long the rivet needs to be. Sealed: Similar to standard rivets, the mandrel on this rivet is completely enclosed, making it watertight. You can measure the depth of your materials with a good caliper. Standard: The most common and the least expensive, these blind rivets are not watertight and aren’t as strong as other types of fasteners.
Select a rivet length that will fit your work pieces. Remember to use a center punch first because a bit will tend to wander on metal without some sort of initial guide. I find that clamping the two pieces together first ensures that the hole that I drill is exactly where I want it. You'll start by drilling a hole through your two work pieces. The size of the rivet will define the hole that you will need to drill. Select the smallest gauge that you think that you can get away with. Rivets come in different gauges, which means that you have an assortment of options.
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