Also referred to as "Break Stem" rivets, this style is the most widely used. They are simple to install & offer the best variety of material combinations. The flange (head) braces against the topside of the material while the rivet body forms a bulge on the backside, creating a tight clamp for two or more layers. For softer materials create a larger bearing surface with a "large flange" rivet, or use a washer to help absorb the impact from installation. Need a smooth surface? Choose a countersunk rivet. Will the rivet be in contact with food or exposed to moisture. Choose stainless steel.