I love the invention of Pop Rivets aka blind rivets. They can provide superior fastening solutions. This orlock rivet has taken some great features from the Pop brand of “blind rivet” and done something new and innovative. This rivet, which is called and Orlock blind rivet, has a back side flange. Notice how it forms a washer-like flange on the back, providing a large “footprint” on the blind side of the workpiece. Revolutionary idea because distributes the clamping load of the rivet over a wider surface area, like a nut and bolt can. All this, even if you can’t see or reach the blind side to put the nut on. Cool.