Tee Cee Industries offers Round Head Rivets with Drum Polish. Tee Cee Industries offers various kinds of industrial fastener products. A metal bolt or pin having a round head on one end is inserted through aligned holes in the pieces to be joined and then hammered on the plain end so as to form a second head. Round Head Rivets with Drum Polish have Range: 3/16, 1/4 width 3/8 inches to 2.1/2 inches length and Finish: Cold Forged.