Blind rivets, which are a type of permanent mechanical fastener.
They are used to join two or more materials together when access is only available from one side of the workpiece.
Also known as pop rivets, they are inserted into a hole and then deformed to create a secure joint.
Rivets are widely used in metalworking, construction (such as aircraft and bridges), and manufacturing due to their strong, vibration-resistant joints.
They provide a reliable and quick method for permanently joining materials.