Installing an aluminum plunger latch

A contractor from Ridgefield, CT says:
April 3, 2020
The plunger latch that I have is an aluminum unit with an aluminum cap. I'm trying to figure out what I need to do to get the aluminum cap to stay on. It doesn't have a shoulder like the plastic ones. Do you need to crimp it?
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Casey from SWISCO responded:
April 6, 2020

May we see a photo of the latch you have a question about? We want to make sure we provide an accurate answer for you. Thank you. 
A contractor from Ridgefield, CT says:
April 6, 2020
Here is the photo of the latch
Thumbnail of the uploaded file named 74B04626-F333-4986-B00B-47DB6EF1D76D.jpeg
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Dave Sr. from SWISCO responded:
April 7, 2020

Hi there, I think I can help. You have an older style pull pin with a metal cap. You will need to crimp it using a type of center punch. Take a look at the 75-075; you will need a center punch/nail set similar to this to set the camp on your pull pin. You might have a center punch in with your tools or you can pick one up a local hardware store in your area. The video below should go into more detail.
5 Pack, Screen Plunger Pin Latches, 7/32"
5 Pack, Screen Plunger Pin Latches, 7/32"
70-008
$4.15
Rivet Installation Tool
Rivet Installation Tool
75-075
$8.62
5 Pack, Screen Plunger Pin Latches, 5/32"
5 Pack, Screen Plunger Pin Latches, 5/32"
70-009
$3.97
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