Rockwood 555.26D Lever Extension Flush Bolt for Fire-Rated Swinging Hollow Metal Doors, 1" Width x 6-3/4" Height, Brass Satin Chrome Plated Finish Lever extension flush bolt with a brass satin chrome plated finish for securing a pair of swinging metal fire-rated doors For use on fire- rated 3-hour hollow metal doors up to 10' high x 4' wide Face plate measures 6-3/4" high x 1" wide; strike is 2-1/4" high x 15/16" wide; and guide is 2" high x 1" wide Meets ANSI A156.16: L04251 specifications and A115 door and frame preparation specifications for door and frame preparation Includes mounting hardware