Used for the Attachment of Metal and Plastic Lath, Plaster Repair, Insulation Board, and Gypsum Sheathings 1000 pieces per Box 4 Keyholes for Bonding of Plaster and Basecoats Center Hole will Accommodate Screws to #12

1-1/4" round plate, designed to be FLAT Round shape design evenly distributes bearing load without any sharp edges or corners minimizing damage to facer or insulation. Seated plate has zero profile and will not catch the edge of a trowel. G-90 Galvanization 1,000 pcs per box