The screw is meant to hold various elements of the engine in place. Loose or damaged screws could cause issues with the engine. Over time, a screw might become damaged or break. If there is a rattling sound in the equipment, it might be due to a loose screw. It is important to make sure the screws on the engine are tight and that they are in good shape.
The OEM replacement screw is sold individually. The screw can be used on a range of different types of lawn and garden equipment engines, including lawnmowers, snowblowers, log splitters, pressure washers, wood chippers, bath fans, tillers, and other small engines. The screws are compatible with many different brands, as well. These include Briggs & Stratton, Craftsman, Toro, Cub Cadet, Tecumseh, Simplicity, MTD, Lawn-Boy, and Snapper.