This part goes onto the side of a snare drum , and is used to anchor the snare wires on the bottom drum head. They work with a Butt plate on the opposite side of the drum Mounting Screws ARE included. This COMBO includes our 5023 butt plate. (may not match photo, but is listed on our site) Actually a nicer model. This part goes onto the side of a snare drum , and is used to anchor the snare wires on the bottom drum head. they work with a strainer on the opposite side of the drum. Mounting Screws ARE included.