Measure the width of the stairs on which your applying the nonskid pads. You can leave off a few inches on each side of the stair because the pad handles foot traffic that is generally in the center -- or to the side -- of the stairs.
Measure and cut the nonskid pads to size using the utility knife. Lay each pad on its step to ensure that size and position are to your specifications.
Mark the hole spaces from the nonskid strip onto the concrete with a pencil. Remove the strip and set it aside. Drill holes into the concrete using the rotary hammer drill fitted with a stainless or carbon steel drill bit. Drill the stainless or carbon steel anchor into the hole.
Set the nonskid strip back in place so the holes in the strip align with the newly drilled concrete holes. Screw the strip in place using stainless or carbon steel concrete screws.
Repeat the process with each concrete step until all of them are fitted with a nonskid aluminum pad.