Rivets, brass plated iron - Pack 5000
The rivets are made of brass-plated iron and consist of male and female.
Mainly used to apply the hangers 203TC - A216 - A217 to the frame support (cardboard, faesite, etc.). But they could also serve in other similar cases.
For the application you can use a normal hammer or a riveter such as, for example, the manual riveter with code PU.