Set of 200 RODAC self-drilling metal screws – box contains: 30 piรจces #8×1″, 30 piรจces #8×3/4″, 30 piรจces #8×5/8″, 30 piรจces #8×1/2″, 20 piรจces #10×5/8″, 20 piรจces #10×1/2″, 20 piรจces #10×3/4″ and 20 piรจces #10×1″. It is ideal for use with sheet metal and wet environments.