Rivets is a hollow rivet, equipped with a screw stem, nailing stalk end of round collar shape, scale, operation rivet holes, first insert the snap rivets, using manual or pneumatic pull riveting gun | riveter clamp head rivets live terrier, nail biting, and to pull the rivet head pressure, pull force material softer rivet head outward expansion into flange form, so that the material together, and then a tensioning until the screw stem is pulled, the plate can be riveted.