Translations:Adventist Youth Honors Answer Book/Arts and Crafts/Metal Craft/21/en
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b. Pop rivet
Pop rivets are made from flared aluminum tubes and a stem (or mandrel) through the center. The stem has a small ball at the end which has a diameter great than that of tube. The rivet assembly is inserted into a hole drilled through the parts to be joined and a specially pop riveting tool is used to draw the mandrel into the rivet. The ball at the end of the mandrel expands the end of the rivet and the mandrel snaps.
