This self-tapping hex screw is designed to be used on various components of lawnmowers and snowblowers. It can also be used for many other things that require a self-tapping screw. It can secure wood, metal, brick, and plastic materials together. Self-tapping hex screws do not require a pilot hole as the screw makes it on its own. Only metal will require a pre-drilled hole to use the hex screw.A quick visual inspection will give insight into whether a hex screw needs to be replaced. Sometimes they can break or become damaged over time. In other cases, the self-tapping screw may become loose and will not hold materials together in the appropriate way. Some screw heads also get stripped and will require replacement. If a hex screw is damaged, a hex wrench can be used to remove it. The replacement hex screw can then be inserted and tightened to faster materials back together.This self-tapping hex screw can be used with lawnmowers, lawn tractors, and snow blowers made by Snapper, Murray, Briggs & Stratton, Craftsman, and Simplicity. It is a genuine OEM product directly sourced from the manufacturer. It comes as an individual screw.