The Markar 100 Series surface-mounted Pin And Barrel continuous hinges are an ideal solution for sagging doors. This flush mounted hinge allows perfect alignment for retrofitting hollow metal, wood, or aluminum doors within the existing conditions. No need to readjust weather-stripping.This series is extruded using 30% more aluminium than most geared hinges providing for exceptional strength and durability. The 100 Series Hinges are NOT fire rated.