Open rivet nut countersunk head
LOADING ZOOM 
Open rivet nut countersunk head steel zinc plated or stainless steel 303 Deform-Nut® type 9201 with knurling can supply an M3 up to M12 innerthread in sheet thicknesses from 1,6 up to 8,0mm.
Description
How to mount an open rivet nut countersunk head?
First you choose the right grip range and the right metric innerthread for your application (attention on the needed space behind the sheet!) and then you get a manual or pneumatic tool for rivet nuts.
When you drilled the needed countersunk hole size for the blind rivet nut, you screw the rivet nut on the outer thread of the tool and pull back the innerthread towards the collar.
This way, the rivet nut will deform itself and grip the thin sheet.
Simply unscrew the outer thread from the blind rivet nut with large round head and you're done!
