Cal-Royal SC8445 Grade 1 Morti...
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$380.67

Cal-Royal SC8445 Grade 1 Mortise Lockset with Privacy Deadbolt, Coin Turn Outside and Occupied Indicator

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Model: SC8445 SS US26D
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$380.67
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Cal-Royal SC8445 Grade 1 Mortise Lockset with Privacy Deadbolt, Coin Turn Outside and Occupied Indicator

The Cal-Royal SC8445 is a Grade 1 privacy mortise lockset engineered for 1 ¾" (44.5mm) thick doors, featuring a coin turn outside, inside thumbturn deadbolt, and an "OCCUPIED" indicator plate for bed, bath, and privacy applications. This heavy-duty wrought steel lock case is zinc dichromate plated and field reversible, with a 2 ¾" (70mm) backset and 3 7/8" (98mm) center-to-center dimension. Lock body construction conforms to ANSI A156.13 Grade 1 performance standards and is tested to exceed 1,000,000 cycles, delivering commercial-grade durability for demanding facilities.

Key Features

  • Door Thickness Compatibility: Designed for 1 ¾" (44.5mm) thick standard doors.
  • Heavy-Duty Durability: Lock body conforms to ANSI A156.13 Grade 1 standards and exceeds 1,000,000 cycles for long-term reliability in commercial applications.
  • Heavy-Duty Construction: Wrought steel lock case with zinc dichromate plating provides exceptional corrosion resistance and durability.
  • Deadbolt & Latch Specifications: 1" (25.4mm) throw hardened stainless steel deadbolt and ¾" (19mm) throw one-piece stainless steel latch bolt with anti-friction reversible tongue.
  • Backset & Center-to-Center: 2 ¾" (70mm) backset only, with 3 7/8" (98mm) center-to-center from lever to cylinder.
  • Armor Faceplate: Brass or stainless steel, 8" x 1 7/32" (203mm x 31.3mm) per ANSI Standard A115.1.
  • Field Reversible Handing: Lock bodies are easily fielded reversible with no need to specify hand when ordering; latch bolt handing can be changed by removing the locking screw, rotating the bolt 180°, and refastening.
  • Interchangeable Core Compatibility: Accepts compatible 6 or 7 pin cores with BEST, FALCON, and ARROW (SFIC); standard 6-pin solid brass "C" keyway cylinder.
  • Free-Wheeling Clutch Design: Outside lever rotates when locked, preventing excessive force on the lever and reducing breakage or damage risk.
  • Retrofit Capability: Can retrofit Schlage L9000 Series mortise lock without drilling additional holes for sectional and escutcheon trims, with no exposed mounting screws on outside and inside trims.

Certifications & Compliance

  • Meets ANSI/BHMA A156.13 Series 1000, Operational & Security Grade 1 Standards
  • UL and cUL Listed to Canadian safety standard for A label (3-hour fire door); stamped letter F and UL symbol on armor faceplate
  • Meets positive pressure requirements UL 10C and UBC 7-2 (1997)
  • Meets ADA requirements, specifically designed for Barrier Free Application

Technical Specifications

  • Product Group: Mechanical Locks
  • Cylinder and Keyways: 6-pin solid brass "C" keyway standard, Interchangeable Core locks will accept compatible 6 or 7 Pin cores with BEST, FALCON and ARROW (SFIC)
  • Product Subgroup: Mortise Locks and Trim
  • Product Type: Mortise Locks
  • Subcategory: Mortise Lockset
  • Latch Throw: 3/4" (latch), 1" (deadbolt)
  • Commercial/Residential: Commercial
  • Lock Function: Privacy/Bed/Bath
  • Keyed: No
  • Product Attribute: Mortise Locks
  • Electronic: No
  • Product Model: SC8445
  • (CTC) Center-to-Center: 3-7/8"
  • Product Function: Privacy/Bed/Bath
  • Door Hand Direction: Field Reversible
  • Door Thickness Range: 1-3/4"
  • Face Plate: Brass or stainless steel, 8" x 1-7/32"
  • Product Category: Mechanical Locks
  • Backset (Distance): 2-3/4"
  • Department: Door Hardware

Typical Applications

  • Commercial Office Buildings
  • Educational Facilities
  • Healthcare Institutions
  • Retail Establishments
  • Industrial and Warehouse Facilities
  • Multi-Tenant Residential Properties
  • Government and Municipal Buildings

Why Cal-Royal SC8445?

Cal-Royal SC8445 mortise locksets deliver professional-grade reliability with heavy-duty wrought steel construction rated to exceed 1,000,000 cycles under ANSI A156.13 Grade 1 standards. Engineered for demanding commercial applications where dependable privacy locking, fire-rated performance, and ADA-compliant operation are essential.

Product Specs

Product Group:
Mechanical Locks
Cylinder and Keyways:
6-pin solid brass "C" keyway standard, Interchangeable Core locks will accept compatible 6 or 7 Pin cores with BEST, FALCON and ARROW (SFIC)
Grade:
Grade 1
Product Subgroup:
Mortise Locks and Trim
Product Type:
Mortise Locks
Subcategory:
Mortise Lockset
ANSI/BHMA:
ANSI Standard A115.1
Latch Throw:
3/4" (latch), 1" (deadbolt)
Commercial/Residential:
Commercial
Lock Type:
Mortise
Handle Type:
Lever
Lock Function:
Privacy/Bed/Bath
Keyed:
No
Product Attribute:
Mortise Locks
Electronic:
No
Product Model:
SC8445
(CTC) Center-to-Center:
3-7/8"
Product Function:
Privacy/Bed/Bath
Door Hand Direction:
Field Reversible
Door Thickness Range:
1-3/4"
Face Plate:
Brass or stainless steel, 8" x 1-7 /32"
Product Category:
Mechanical Locks
Product Substrate:
Steel
Backset (Distance):
2-3/4"
Department:
Door Hardware

Cal-Royal SC8445 SS US26D – Frequently Asked Questions

1) Do I have to specify left hand or right hand when ordering the Cal-Royal SC8445?
No hand to specify. The SC8445 lock body is field reversible, so one part number covers both hands. The latch bolt is reversed on site by backing out the locking screw, rotating the bolt 180 degrees, and refastening it. Useful if you are buying a batch for a building and do not want to count doors by swing.
2) Will the Cal-Royal SC8445 latch and bolt into my existing ANSI mortise strike?
The latch throws 3/4 inch and the deadbolt throws a full 1 inch, which is standard mortise lock geometry, so a strike already cut for an ANSI mortise prep will take it. The armor front is 8 x 1-7/32 inches per ANSI A115.1, in brass or stainless. If your frame was prepped to A115.1 for a mortise lock, the faceplate cutout lines up without new frame work.
3) Can the Cal-Royal SC8445 replace a Schlage L9000 mortise lock without redrilling the door?
Yes, and that is the main reason people specify it. The SC8445 retrofits a Schlage L9000 Series mortise lock with no additional holes drilled for either sectional or escutcheon trim, and neither the inside nor outside trim shows mounting screws. If you are swapping out privacy locks on an L9000 building, the existing door prep carries over.
4) What does the coin turn on the outside of a privacy mortise lock actually do, and who can get in?
On the SC8445 the inside thumbturn throws a 1 inch deadbolt to lock the room, and an OCCUPIED indicator plate shows the status from the corridor. The outside has a coin turn instead of a cylinder, so staff or maintenance can release the deadbolt with a coin or flat blade in an emergency. There is no key and no cylinder on this function, which is why it is a bed, bath and privacy lock and not a secured entry lock.
5) Is the Cal-Royal SC8445 approved for a fire rated door?
Yes. The SC8445 is UL and cUL Listed to the Canadian safety standard for an A label 3 hour fire door, and the armor faceplate carries the stamped letter F and the UL symbol so an inspector can verify it in place. It also meets positive pressure requirements under UL 10C and UBC 7-2 (1997), and it meets ADA requirements for barrier free application.
6) Is a privacy mortise lock rated tough enough for a high traffic restroom in a school or hospital?
The SC8445 lock body conforms to ANSI/BHMA A156.13 Series 1000 Grade 1 for both operational and security, tested past 1,000,000 cycles, in a wrought steel case with zinc dichromate plating. The outside lever free-wheels when the deadbolt is thrown, so somebody yanking on a locked restroom door twists the lever against a clutch rather than against the spindle. That is the failure mode that usually kills privacy locks in public restrooms.
7) What is the closest equivalent to a Cal-Royal SC8445 privacy mortise lock from another brand?
The Hager 3840S is the nearest match. Both are privacy/bed/bath mortise locks with a 2-3/4 inch backset, and both are Grade 1. The Cal-Royal SC8445 is built for 1-3/4 inch doors, while the Hager 3840S covers a 1-3/4 inch to 2 inch door thickness range. The SC8445 adds a coin turn on the outside and an OCCUPIED indicator plate; the 3840S is a straight privacy function. If the opening needs the emergency coin release and visual occupancy status, stay with the SC8445; if it is a plain privacy door and the leaf runs thicker than 1-3/4 inch, the 3840S covers it.
8) I need a mortise lock for a restroom door but no deadbolt or locking at all - what do I use instead of the SC8445?
Drop to a passage function. The Cal-Royal SC8445 is a privacy lock with a 1 inch throw deadbolt and thumbturn, which is more than an unsecured door needs. The Falcon MA101 is a Grade 1 heavy-duty mortise passage lock, fire rated and field reversible like the SC8445. The Schlage PM010 is a Grade 1 passage latch mortise lock for 1-3/4 inch doors, the same door thickness the SC8445 is built for. Hager also offers the 3810S passage mortise lock with rose and a 2-3/4 inch backset, matching the SC8445 backset, or the 3810E with escutcheon trim.
9) Can I use the Cal-Royal SC8445 on a classroom or office door instead of ordering a separate lock?
No - the SC8445 is a privacy/bed/bath function and is non-keyed, so it cannot be locked or unlocked with a key from the corridor side. For a classroom opening, the Corbin Russwin ML2003 is a Grade 1 mortise classroom lockset built for 1-3/4 inch doors, the same door thickness the SC8445 uses. Marks USA LA318GJ is a Grade 1 classroom security indicator mortise lockset, also 1-3/4 inch, if the room needs lockdown with a visual status like the SC8445 indicator. For an office door, the Hager 3850E is a Grade 1 office mortise lock with lever and escutcheon on a 2-3/4 inch backset, the same backset the SC8445 uses, so the door prep carries over.
10) Which mortise lock should I use for a behavioral health or patient room instead of the Cal-Royal SC8445?
The SC8445 uses a projecting lever and an outside coin turn, which are pull points in a ligature-risk room. TownSteel offers the MRX-L-01, a Grade 1 heavy-duty anti-ligature lever mortise lockset in stainless steel for 1-3/4 inch doors, and the MRX-A-01, a ligature resistant arch trim version in satin stainless steel, both passage function on the same 1-3/4 inch door thickness the SC8445 is built for. Marks USA 5PDN is a Grade 1 hospital passage mortise push/pull paddleset, ligature resistant and ADA compliant, if the room calls for paddle operation. All three are passage function, so they do not provide the privacy locking the SC8445 gives - specify accordingly.
11) My doors are 1-5/8 inch thick - will the Cal-Royal SC8445 work, and what else fits?
The SC8445 is built for 1-3/4 inch doors, so a 1-5/8 inch leaf is outside what it is engineered for. Alarm Lock's Trilogy mortise locks cover a 1-5/8 inch to 1-7/8 inch door thickness range: the DL2700CR and DL3500CR are Grade 1 classroom function electronic mortise locks, and the DL4500 is a Grade 1 electronic mortise deadbolt with a privacy keypad, which is the closest of the three to the privacy role the SC8445 fills. These are electronic and keypad operated, unlike the mechanical SC8445, so plan for battery service and code management.
12) I need a dorm room lock with a deadbolt - is the Cal-Royal SC8445 right, or is there a better fit?
The SC8445 gives you a 1 inch throw hardened stainless deadbolt with an inside thumbturn and a coin turn outside, which suits a bed or bath door but is non-keyed, so nobody enters with a key. The Sargent 7925 is a Grade 1 heavy duty dormitory exit function mortise lock with rose trim and a single cylinder deadbolt - the corridor side is keyed. For a dorm room entry where residents carry keys, the 7925 is the function; for the attached bath or a suite privacy door, the SC8445 is the one.
13) I am replacing a Baldwin 6301 mortise lock body - does the Cal-Royal SC8445 drop in?
Not without checking the prep. The Baldwin 6301 entry/apartment mortise lock bodies, knob by knob and lever by lever, use a 2-1/2 inch backset and are made for 1-3/4 inch and over doors. The Cal-Royal SC8445 is a 2-3/4 inch backset only, so the cross bore and case pocket sit a quarter inch further from the edge. Function differs too - the Baldwin 6301 is entrance/apartment while the SC8445 is privacy/bed/bath. The same 2-1/2 inch backset applies to the Baldwin 6310 entry/storeroom bodies.
14) Can I put a BEST or Falcon interchangeable core in a Cal-Royal SC8445?
The interchangeable core versions of the Cal-Royal SC8445 accept compatible 6 or 7 pin SFIC cores in BEST, FALCON and ARROW formats, so a facility already keyed on a BEST small format system can pull its own cores into these. The standard, non IC build ships with a 6 pin solid brass C keyway cylinder. Note that the privacy function itself is not keyed, so this matters for matching the rest of your hardware line on the same opening.
15) Should I use a privacy mortise lock with a deadbolt and indicator, or a keyed classroom or storeroom mortise lock?
It comes down to who controls the door. The SC8445 is a privacy function: occupant throws the deadbolt from inside, OCCUPIED shows outside, and a coin turn releases it in an emergency. Nobody is keying in. For a door where staff need key control, the Corbin Russwin ML2003 is a Grade 1 classroom mortise for 1-3/4 inch doors, and the Accentra 8805FL is a Grade 1 storeroom mortise lock. For a passage door that never locks, the Falcon MA101 is the Grade 1 heavy duty passage equivalent, also field reversible.
16) What is the difference between the Cal-Royal SC8445 and the Schlage CO-100 privacy mortise lock?
Both are Grade 1 privacy mortise locks for 1-3/4 inch doors, but they are different classes of hardware. The Cal-Royal SC8445 is mechanical - no electronics, a coin turn outside and an inside thumbturn deadbolt, with an OCCUPIED indicator plate. The Schlage CO-100 is a standalone electronic mortise lock with a keypad reader, so it needs credential programming and battery service. For a bed, bath, or privacy opening where the only requirement is occupancy status and an emergency release from the corridor side, the SC8445 does the job with no power or programming. Choose the CO-100 when the room needs code-based access control.
17) Is a Sargent 4874 mortise deadbolt a substitute for the Cal-Royal SC8445?
No. The Sargent 4874 is a double cylinder mortise deadbolt on a 2-3/4 inch backset - it is a deadbolt alone, with no latch and no lever trim. The Cal-Royal SC8445 is a complete privacy lockset: a lever handle, a 3/4 inch throw latch bolt, and a 1 inch throw deadbolt in one lock case. The two share the 2-3/4 inch backset, so a 4874 can go above an existing latchset in a two-hole prep, but it will not close or latch a door on its own. Same caution applies to the Kaba Ilco 185 Series, which is a deadbolt function mortise lock rather than a latching lockset.
18) How does the Cal-Royal SC8445 compare to a BEST 45H mortise lock body?
The BEST 45H items are lock bodies rather than complete locksets - the 45HCAC is a heavy duty public entrance function body and the 45HCAINL is a heavy duty intruder function body, both field reversible in the case of the 45HCAC. The Cal-Royal SC8445 ships as a lockset with lever trim, a wrought steel case, and an 8 inch by 1-7/32 inch brass or stainless armor faceplate. If a facility is already standardized on BEST small format interchangeable cores, that is not a reason to skip the SC8445 - its interchangeable core version accepts compatible 6 or 7 pin cores with BEST, FALCON, and ARROW SFIC.
19) Will an Emtek mortise entrance lockset work in place of the Cal-Royal SC8445 on a commercial door?
No. The Emtek 3019 Brisbane, 3102 Memphis, 3104 Hamilton, and 3106 Manhattan mortise entrance locksets are all dummy function - decorative trim with no latch and no locking mechanism. The Cal-Royal SC8445 is a commercial Grade 1 privacy lockset with a working latch bolt and deadbolt, UL listed for A label 3-hour fire doors. A dummy set cannot be used on a fire rated or latching opening. If the need is genuinely an inactive leaf, the Emtek dummy sets or the Schlage L0170 Grade 1 half dummy trim for 1-3/4 inch doors are the correct items.
20) Can I standardize a building on the Cal-Royal SC8445 for every door, or do I need other functions?
The SC8445 covers privacy/bed/bath openings only - restrooms, patient rooms, dressing rooms, suite baths. A full building needs other functions on the same 2-3/4 inch backset and 1-3/4 inch door platform: the Hager 3810S or 3810E for passage doors on a 2-3/4 inch backset, the Hager 3850E for office doors on a 2-3/4 inch backset, and the Accentra 8805FL Grade 1 storeroom mortise lock from the 8800 Series for storage and mechanical rooms. Keying can stay consistent across the openings that take cylinders, since the SC8445 interchangeable core version accepts BEST, FALCON, and ARROW SFIC cores.
21) What mortise privacy lock works on an aluminum storefront or narrow stile door if the SC8445 does not?
The Cal-Royal SC8445 is a 2-3/4 inch backset wide-case mortise lock for 1-3/4 inch doors, which is a hollow metal or wood door platform rather than a narrow aluminum stile. For aluminum openings, Alarm Lock's DL1300NW Trilogy Networx wireless electronic mortise lock is made for Adams Rite deadlatches, and Dormakaba's E-Plex 2066 Series electronic pushbutton keyless mortise lock is a wide stile unit. Both are electronic and neither is a privacy function, so an aluminum privacy door is a different specification exercise than swapping the SC8445 across.
22) The SC8445 retrofits a Schlage L9000 - what if the opening actually needs an electrified mortise lock?
The SC8445 retrofits Schlage L9000 Series mortise locks without drilling additional holes for sectional and escutcheon trims, but it is a mechanical, non-electronic lock. Where the opening needs to be released from an access control system, the Schlage L9092EU with 03A trim is a heavy duty electric lock/unlock outside lever mortise lock for 1-3/4 inch doors, keyed outside, with request to exit and 12/24VDC operation. Command Access ML190 Series is a heavy-duty motorized mortise lock with field selectable EL/EU operation on 24VDC in a storeroom function. Both need power transfer to the door; the SC8445 does not.
23) Can I match the Cal-Royal SC8445 to the brass hardware already on the rest of my doors?
Five finishes are offered on the SC8445: polished brass US3, satin brass US4, antique bronze oiled US10B, satin chrome US26D and satin stainless steel US32D. US26D and US32D are the usual commercial pairings against aluminum frames and stainless push plates, while US3 and US4 match traditional brass trim. Lever style is set by which of the sectional or escutcheon trim codes you order.
24) Does the Cal-Royal SC8445 need power or wiring run to the door?
No power, no wiring, no batteries. The SC8445 is a purely mechanical mortise lock, so the opening needs nothing but a mortise pocket and a strike. If the job actually calls for an electrified mortise lock on 1-3/4 inch doors, the Schlage L9092EU with request to exit runs on 12/24VDC, and the Command Access ML190 is a motorized 24VDC mortise body with field selectable fail safe or fail secure.
25) Is a Sargent 130KB thumbturn all I need if I already have a mortise lock in the door?
Only if the existing lock body already has a deadbolt and is missing its turn piece. The Sargent 130KB is a standard duty mortise thumbturn for the 8200 Series, and the Sargent 130W is a standard duty thumbturn with a round backplate for the 7800 Series - both are trim pieces, not lock bodies. The Cal-Royal SC8445 is a complete lockset: lock case, lever trim, 3/4 inch latch, 1 inch deadbolt, coin turn outside, and the OCCUPIED indicator plate. If the door has no mortise pocket or the existing case has no deadbolt, a thumbturn alone will not create privacy function.
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Does the Cal-Royal SC8445 SS US26D come with a warranty?
Absolutely. The Cal-Royal SC8445 SS US26D is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
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