For veneer thin-wall plaster systems. Mini-bead 800 (MB80) has 1/16 In. grounds for 1-coat veneer plaster and 90 keys per linear foot for excellent bonding and strong corners. Galvanized fine-mesh flanges are tapered along outer edges to enhance veneer plaster concealment and eliminate shadowing. For interior finish systems (Zinc mini-bead, ZB89/ZB90). Corner bead is ordered by the case.