This screw, part number 503212810, secures key components in your Insinkerator, Sinkmaster, General, Hoover, Husqvarna, Bolens, Craftsman, MTD, Cub Cadet, Ryobi, Poulan Pro, Shindaiwa, or Wagner Garbage Disposer, Humidifier, Vacuum Cleaner, Lawn Mower, Snowblower, String Trimmer, Hedge Trimmer, Chainsaw, Bath Fan, or Paint Sprayer.