The Hillman Group 9522 3/16-Inch by 1-1/4-Inch WallDog Oval Head Phillip Screw, Black Screw and anchor in one Easily penetrate wood and metal studs Holds up to 50-Pound (1/2-Inch drywall), 175-Pound (4000 psi concrete), 95-Pound (brick) Black finish 4 pieces per pack