The length of the leg indicates how thick the material can be joined. The thread increases the thickness by +2mm. For example: with a leg length of 10 mm it is possible to join materials with a thickness of 10 - 12 mm. For thinner materials - the leg must be shortened. Screw-in rivets are convenient - they can be inserted without special tools.
The hole is created with a ø4 mm hole punch.
The hat on the right side of the rivet is smooth and on the other side there is a notch for a screwdriver.
Material: bronze