olskoolpup
+1y
they are basically a spring loaded, removable pop rivet. ther are different sizes available, but most common would be 1/8", which means you need to drill an 1/8" hole through the 2 pieces of sheetmetal you are lining up, for the cleco to go through.
they look to be pretty badass and i hope to pick some up soon. definately a time saver.