Butt Plate- Adj Modern Standard -BLACKB 2B 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. 1 9 16in (40mm) top hole to bottom hole row. 1in (25mm) from hole to hole bottom row. NOTICE: It is very common in our industry for black drum parts to have a wide range of color variation from part to part. Example: Hoops and tube lugs may be lighter