Clinch-On manufactures 1/2” radius 7/8” wide flange 90-degree bullnose corner bead with its proprietary coated steel and a deep knurling (embossing) to give you a superior joint compound adhesion and maximum protection for a professionally finished corner. Our 7/8” flange provides you with extra liberal installation space for nailing, stapling, screwing or clinching our corner bead to drywall. Our proprietary steel coating gives our corner bead a dark (dull) appearance and superior adhesion qualities compared to shiny hot dipped galvanized steel. Our wide 7/8” 90-degree bullnose corner bead with a 1/2” radius is designed for 90-degree outside corners.