Rivets are a type of blind fastener used for fastening thin sections of metal or plastic together. They are used mainly when access to the rear of the workpiece is restricted. When fixed they create a smooth finish. They are applied using rivet pliers, lazy tongs or pneumatic and battery powered tools. They are available in aluminium, steel and stainless steel in a variety of different types including multigrip, large flange, countersunk, peel, sealed and coloured multigrip. Also known as pop rivets.