kwikSTIK® Paper-Faced Nail-On Metal ½” Bullnose Corner Beads are used on 90° outside corners with any standard drywall thickness for smooth, rounded corners. The rigid steel-reinforced corner is covered with a unique, high strength paper providing maximum strength and protection while preventing cracking caused by the movement or shrinkage of framing members. Features over 20% thicker steel than ASTM C1047 minimum requirement and is installed in the same manner as traditional metal and vinyl beads using screws, nails or staples.