Dave Sr. from SWISCO responded:
February 22, 2023
I've installed the 39-110 using a 3/16" pop rivet. Just make sure that you don't pull it with too much force. You want a little play so the Louvers will move freely. A standard 1/8" pop rivet diameter is too narrow. You could use the smaller pop rivets with some washers, but I find the 3/16" diameter works best. |