M Series - Heavy Duty Mortise Lockset - Grade 1
Comparison Chart

Function ANSI No. Cal-Royal Model No. NT Falcon M Series Arrow B Series Corbin Russwin ML2200 Sargent 7700/8100 Schlage L Series PDQ Series 1000 Yale
Passage or Closet F01 M8010 M101 B01 ML2210 13 L9010 126 8701
Entrance or Office F04 M8050 M521 B22 ML2251 5 L9050 116 8707
Classroom F11
F12
M8453 M531 B11 ML2267 45 L9543 156 8747
Apartment or Dormitory F05 M8070 M561 B17 ML2255 37 L9070 148 8708
Dormitory or Entrance F13 M8456 M571 B19 ML2265 25 L9456 136 8722
Storeroom or Closet F07 M8080 M371 B12 ML2257 4 L9080 115 8705
Hotel or Motel F15 M8485 M451 B15 ML2229 50 L9485 161 8720
Privacy or Bathroom F02
F19
M8040 M311 B02 ML2220 65 L9040 176  
Apt. Entrance or Vestibule F14 M8060 M381 B32 ML2242 16 L9060 127 8717
Storeroom or Utility F14 M8466 M371 B31 ML2222 26 L9466 137 8760
Institution   M8082         L9082    
Dummy   M8170 M12 B08 ML2270 93 L0170