Malco HW10X2, Drill-In Screw Type A, 5/16 in. Hex Slotted Head, Zinc, 2400 Piece Bulk
Malco Drill-in screws, type A, are designed with a single thread. These screws have a 5/16 in. slotted hex head and are zinc plated. These screws are available in longer lengths and multiple piece quantities.