Phillips #33 Wide Expanded Flange Bead provides additional rigidity and strength with its reinforced flanges. This product is for use on masonry, beams, and column fireproofing. Combination of expanded flanges and pronounced bead nose ensures successful corner alignment and efficient plaster keying from edge to nose. Manufactured with full stiffening ribs to enhance durability. This product is produced with galvanized steel (zinc available special order, minimum quantities may apply).