Self-Drilling Hex Head Sheet Metal Screw Kits are a collection of fasteners for practical use around the home or workplace. Self-Drilling Screw sizes and quantities included in kit: (24) #6 x 1/2", (15) #6 x 3/4", (24) #8 x 1/2", (20) #8 x 3/4", (10) #8 x 1", (15) #10 x 1/2", (15) #10 x 5/8", (15) #10 x 3/4", (12) #10 x 1", (10) #12 x 3/4", (10) #12 x 1", (8) #12 x 1-1/4", (8) #14 x 3/4", (6) #14 x 1", (4) #14 x 1-1/2". Magnetic Drivers Included in Kit: (1) 1/4", (1) 5/16", (1) 3/8".