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Mortise Lock, Extra Heavy Duty

Model No.
M Series
Made in
THASE ENTERPRISE CO., LTD.More About This Product
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Extra Heavy Duty, UL/cUL, ANSI/BHMA Grade 1

Key Features

Mortise Lock

M Series
*C to C (℄ lever to ℄ cylinder) is 3-7/8" (98mm) 


  • The heavy duty Mortise Locks are designed a patented construction with superior quality to provide high security, easy installation and durability.
  • A full range of multiple functions to meet different demands for all commercial, institutional and industrial applications.
  • Full reversible design
  • No exposed mounting screws on outside and inside trims
  • Can retrofit American Schlage L9000 Series Mortise lock bodies.
  • Lock bodies are easily field reversible, no need to specify hand when ordering.
  • Outside lever is clutch freewheeling design. The lever rotates when the lever is locked preventing excessive force from being applied to the horizontal level. This design can decrease the lever to be broken or damaged.
  • Can be master keyed or grand master keyed. Construction key is also available.
For Doors 1-3/4”(44.5mm) thick standard. For doors over 1-3/4”(44.5mm), specify door thickness
Lock Hand Lock bodies are easily filed reversible, no need to specify hand when ordering 
Backset 2-3/4” (70mm) only
Lock case Heavy duty wrought steel, zinc dichromate plated 
C to C ℄ lever to ℄ cylinder is 3-7/8” (98mm) 
Amor Faceplate Brass or Stainless Steel; 8” x 1-7/32” (203mm x 31.6mm); ANSI Standard A115.1 
Deadbolt 1”(25.4mm) throw; hardened stainless steel 
Latchbolt 3/4”(19mm) throw; one-piece stainless steel with anti-friction reversible tongue 
Auxiliary Latch Stainless steel, non-handed 
Toggle button High rust-resistant chrome plated zinc alloy 
Trims See more details 
Strike Brass or Stainless Steel; ANSI Standard A115.1; curve lip with dust box 
Cylinders See more details
Masterkeying Can be masterkeyed or grand masterkeyed, construction keying available 
Finishes US3, 4, 10, 10B, 26, 26D, 32, 32D 

  • Comply with ANSI/BHMA A156.13-2017 Grade 1 requirement
  • UL/cUL listed to Canadian safety standard for A label (3-hour fire door)
  • Meet UL10C fire label A and UBC 7-2(1997) requirements


Last Update : 2020-04-22
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