How to make riveted chainmail rings.
Rings can be connected by riveting or with butted ends.
There are also different types of rivets: round rivets and wedge rivets. The round rivet usually has a cylindrical shape with an optional hemispheric rivet head on top. You can insert this kind of rivet from each side. The hole for the rivet can be punched out of the overlapping area or drilled instead if you don’t mind about the thin drills tending to break easily. However the hole for a wedge rivet has to be pierced with an awl for the rivet has the shape of a wedge or a cone. It can only be inserted from one side of the ring.
As you see in the side view, the inserted wedge rivet has only one protruding rivet head, which consists of material from both the rivet and the ring. You can use this in a ring weave by aligning all the rivet heads in one direction. Thus they can’t grind garments worn under the mail.