Double Cylinder with Deadbolt
Double Cylinder with Deadbolt

SC8457 SS Cal-Royal Mortise Lock Grade 1 Classroom Security w/Deadbolt

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SC8457 SS Cal-Royal Mortise Lock Grade 1 Classroom Security w/Deadbolt
Part Number: SC8457SS
Availability: SC8457 SS Cal-Royal Mortise Lock Grade 1 Classroom Security w/Deadbolt

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SC8457 SS Cal-Royal Mortise Lock Heavy Duty, Grade 1, Classroom Security w/Deadbolt, Double Cylinder with Deadbolt   

  • Latch bolt retracted by knob / lever from either side. Deadbolt thrown or retracted by key from either side. Throwing deadbolt locks outside knob / lever. Turning inside knob / lever simultaneously retracts deadbolt and latch bolt and unlocks outside knob / lever. Inside knob / lever is always free for immediate egress.  
  • Can retrofit Schlage L9000 Series mortise lock without drilling any additional holes on the door for sectional and escutcheon trims.  
  • Meets Buy America Act  
  • Lifetime Warranty  

Cal-Royal SC Series Information  



  • Finish: 26D  
  • Door Thickness: 1 ¾ (44.5mm) thick standard. For doors over 1 ¾ (44.5mm), specify door thickness  
  • Handing: Lock bodies are easily field reversible, no need to specify hand when ordering  
  • Backset: 2 ¾ (70mm) only backset.  
  • Strike: Brass or stainless steel strike; ANSI Standard A115.1; curve lip with dust box  
  • Lock Case: Heavy Duty wrought steel, zinc dichromate plated  
  • C to C: Center of lever to center of cylinder is 3 7/8 (98mm)  
  • Armor Faceplate: Brass or stainless steel; 8 x 1 7/32 (203mm x 31.3mm); 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  

Cylinders and Keyways 

  •  6-pin solid brass C keyway standard. Optional: Schlage E, Schlage C-K,  
  • Russwin D1-2-3-4, Corbin 59/60, Corbin-Russwin L4, Sargent LA-LB-LC,  
  • Falcon/Weiser E, Arrow A, Yale 8, Yale GA and Kwikset. Can also accept  
  • Medeco, Assa, Kaba and Cal-Royal HSK High Security Cylinders  

Interchangeable Cores (IC)  

  • Interchangeable Core locks will accept compatible 6 or 7 pin cores with BEST,  
  • FALCON and ARROW. Also available with SCHLAGE, large format cylinders  
  • Toggle Button: High rust-resistant chrome plated zinc alloy  
  • Master Keying: Can be master-keyed or grand master-keyed, construction keying available  
  • Auxiliary Latch: Stainless Steel, non-handed  


  • ANSI/BHMA Meets ANSI/BHMA A158.13 Series 1000 Grade 1 requirements.  
  • UL / cUL UL and UL Listed to Canadian safety standard for A label (3-hour fire door); stamped letter F and UL symbol on armor faceplate  
  • POSITIVE PRESSURE Meets positive pressure requirements UL 10C and UBC 7-2 (1997)  
  • ADA APPROVED Meets ADA requirements, specifically designed for Barrier Free Application

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