the work of rivet nut? Flush Rivet Nut
This is the BEST way to install rivnuts! Normally, when you install a rivnut into your tubing, it sticks out 1/16" or so Using this These Countersunk open-end rivet nuts with a knurled body are engaged by the tool's threaded stud which pulls upwards and deforms the unthreaded section of the Stainless Rivnut Nutsert Insertion Tool in Operation (EBAY) ...