M19 Intermediate PivotsCATALOG Product Description & Features M19, bushing, not load bearing Maintains door alignment Aids in installing floor closers and bottom pivots Non ferrous base material 3 4 offset standard On labeled for fire doors NFPA80 requires an intermediate pivot for every additional 30 (762mm) of door height over 60 (1542mm) For 20 minute label suffix 20 to the part number Furnished with wood and machine screws Application Full Mortise Handed