Cal-Royal SC8440 Grade 1 Priva...
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$283.92
Cal-Royal Cal-Royal SC8440 Grade 1, Privacy with Deadbolt Mortise Lockset, SS Lever, Satin Chrome SC8440-26D

Cal-Royal SC8440 Grade 1 Privacy Mortise Lockset with Deadbolt

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Model: SC8440 SS US26D
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Cal-Royal SC8440 Grade 1 Privacy Mortise Lockset with Deadbolt

The Cal-Royal SC8440 is a Grade 1 privacy mortise lockset with integrated deadbolt, engineered for 1 ¾" (44.5mm) thick standard doors with a 2 ¾" (70mm) backset and 3 7/8" (98mm) center-to-center dimension. Built with a heavy-duty wrought steel lock case that is zinc dichromate plated, this fully field-reversible design conforms to ANSI A156.13 Grade 1 standards and exceeds 1,000,000 cycles of testing. Designed as a direct retrofit for Schlage L9000 Series mortise locks, it installs without drilling additional holes for sectional and escutcheon trims, making replacement fast and clean.

Key Features

  • Door Compatibility: Designed for 1 ¾" (44.5mm) thick standard doors with a 2 ¾" (70mm) only backset.
  • Center-to-Center Spacing: 3 7/8" (98mm) from center of lever to center of cylinder for precise trim alignment.
  • Heavy-Duty Durability: Lock body conforms to ANSI A156.13 Grade 1 operational and dimensional standards, exceeding 1,000,000 test cycles for long-term reliability.
  • Deadbolt & Latch Bolt: 1" (25.4mm) throw hardened stainless steel deadbolt paired with a ¾" (19mm) throw one-piece stainless steel latch bolt featuring an anti-friction reversible tongue.
  • Field Reversible Lock Hand: Lock bodies are easily field reversible, eliminating the need to specify hand when ordering.
  • Heavy-Duty Construction: Wrought steel lock case with zinc dichromate plating; armor faceplate available in brass or stainless steel, 8" x 1 7/32" (203mm x 31.3mm) per ANSI A115.1.
  • Cylinder & Keyway Options: 6-pin solid brass "C" keyway standard; interchangeable core accepts compatible 6 or 7 pin cores with BEST, FALCON, and ARROW (SFIC).
  • Clutch Lever Design: Outside lever features a free-wheeling clutch that rotates when locked, preventing excessive force damage to the lever and reducing breakage.
  • Retrofit Compatibility: Retrofits Schlage L9000 Series mortise locks without drilling additional holes for sectional and escutcheon trims, with no exposed mounting screws on outside or inside trims.

Certifications & Compliance

  • 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)
  • ADA Compliant, 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
  • Latch Throw: 3/4" (latch), 1" (deadbolt)
  • Commercial/Residential: Commercial
  • Lock Function: Privacy/Bed/Bath
  • Keyed: No
  • Electronic: No
  • (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
  • Multi-Tenant Residential Properties
  • Government and Municipal Buildings
  • Industrial and Warehouse Facilities

Why Cal-Royal SC8440?

Cal-Royal SC8440 mortise locksets deliver professional-grade reliability with a heavy-duty wrought steel lock case and hardened stainless steel deadbolt rated to exceed 1,000,000 test cycles under ANSI A156.13 Grade 1 standards. Engineered for demanding commercial applications requiring privacy function with barrier-free ADA compliance, this lockset combines fire-rated UL/cUL certification with a field-reversible, retrofit-friendly design for dependable long-term performance.

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:
SC8440
(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 SC8440 SS US26D – Frequently Asked Questions

1) Will the Cal-Royal SC8440 mortise lock drop into a door prepped for a Schlage L9000?
Yes. The SC8440 is built as a direct retrofit for Schlage L9000 Series mortise locks, and it goes in without drilling extra holes for either sectional or escutcheon trim. It also uses the same 2-3/4 inch backset and 3-7/8 inch center-to-center lever-to-cylinder spacing, so existing trim holes line up. There are no exposed mounting screws on the inside or outside trim once it's in.
2) What door thickness and backset does the Cal-Royal SC8440 privacy mortise lock require?
It's a single-thickness lock: 1-3/4 inch doors only, which is the standard commercial door thickness. The backset is 2-3/4 inches only, so a door prepped for a 2-3/8 inch backset won't take it. If your openings are thicker than 1-3/4 inches, this is the wrong lock body for them.
3) Do I need to specify left or right hand when ordering the SC8440 mortise lockset?
No handing to specify. The SC8440 lock body is field reversible, so one part number covers both hands and the installer flips it on site. That matters for a property manager stocking spares: one lock covers every bed and bath door in the building regardless of swing.
4) Will the SC8440 latch and deadbolt work with my existing ANSI mortise strike?
The latch bolt throws 3/4 inch and the hardened stainless deadbolt throws a full 1 inch, both from a 2-3/4 inch backset. Against a standard ANSI mortise strike prep on a 1-3/4 inch door that engages normally. The latch is one-piece stainless with an anti-friction reversible tongue, so it rides into a tight strike without binding. The armor front measures 8 x 1-7/32 inches, matching ANSI A115.1 door prep.
5) Can the Cal-Royal SC8440 go on a fire rated door?
Yes. The SC8440 is UL and cUL Listed for A label 3-hour fire doors, with the letter F and the UL symbol stamped on the armor faceplate so an inspector can verify it in place. It also meets positive pressure requirements under UL 10C and UBC 7-2 (1997). Worth noting for facility use: it's ADA compliant and built for barrier-free application.
6) What does the privacy with deadbolt function on the SC8440 actually do at the door?
Privacy/bed/bath function with a separate 1 inch deadbolt. The occupant throws the deadbolt from inside to secure the room; the outside lever is not keyed at all, so this is not the lock for a room that staff need key access to. The outside lever carries a free-wheeling clutch that spins when the door is locked, so someone yanking on it can't snap the lever or the spindle. Typical uses are patient rooms, dorms, restrooms, and residential unit bath doors.
7) What are the alternatives to the Cal-Royal SC8440 for a Grade 1 privacy mortise lock?
The closest mechanical peer is the Hager 3840S, a Grade 1 privacy mortise lock also on a 2-3/4 inch backset, rated for 1-3/4 to 2 inch doors, so it's the one to reach for if some openings on the job are thicker than 1-3/4 inches. If you want privacy with electronic access instead of a thumbturn deadbolt, the Schlage CO-100-MS-40-KP is a standalone keypad mortise lock in privacy function for 1-3/4 inch doors. For an anti-ligature environment, TownSteel's MRX-L Series is the Grade 1 heavy duty stainless mortise family, though the MRX-L-01 is passage function, not privacy.
8) What is the closest equivalent to a Cal-Royal SC8440 privacy mortise lock from another brand?
The Hager 3840S is the nearest match. It is a 3800 Series Grade 1 privacy mortise lock with a 2-3/4 inch backset, the same backset the SC8440 uses, and the same Privacy/Bed/Bath function. The difference that matters on the door is thickness range and bolt work: the Hager 3840S covers 1-3/4 inch to 2 inch doors, while the SC8440 is built for 1-3/4 inch doors and carries a 1 inch throw deadbolt alongside its 3/4 inch latch. If the opening needs the privacy function with a deadbolt behind it, the SC8440 is the one carrying both bolts.
9) The door is 1-7/8 inches thick. What mortise lock works there instead of the Cal-Royal SC8440?
The SC8440 is dimensioned for 1-3/4 inch doors, so look at bodies with a wider thickness window. The Hager 3810E covers 1-3/4 inch to 2-1/2 inch doors as a 3800 Series Grade 1 passage mortise lock with escutcheon and 2-3/4 inch backset, and the Hager 3850E covers the same 1-3/4 to 2-1/2 inch range in an office function with lever and escutcheon, non-keyed. The Baldwin 6301LS entry/apartment lever by lever mortise lock body is listed for 1-3/4 inch and over on a 2-1/2 inch backset, which changes the door prep.
10) Behavioral health rooms need an anti-ligature lever. Does the Cal-Royal SC8440 cover that, or is there a different mortise lock?
Use a purpose-built ligature resistant body. The TownSteel MRX-L-01 is a Grade 1 heavy duty stainless steel anti-ligature lever mortise lockset in passage function for 1-3/4 inch doors, and the MRX-A-01 is the same passage function with a satin stainless steel ligature resistant arch trim. The Marks USA 5PDN is a Grade 1 hospital passage mortise push/pull paddleset, ligature resistant and ADA compliant in satin stainless steel. The SC8440 is a standard lever lockset with a clutched outside lever, so it suits corridor and office openings rather than ligature-sensitive rooms.
11) Dorm rooms need a deadbolt the occupant throws but staff can key. Is the Cal-Royal SC8440 right, or something else?
Look at the Sargent 7925, a Grade 1 heavy duty 7900 Series mortise lock in dormitory exit function with rose trim and a single cylinder deadbolt. It puts the deadbolt under key control from the corridor side. The SC8440 carries a 1 inch hardened deadbolt too, but it is a non-keyed privacy function, so the deadbolt is occupant-operated only. Where staff key access to a thrown deadbolt is part of the spec, the dormitory function is the one to specify.
12) The door is prepped for a cylindrical lock, not a mortise pocket. What replaces the Cal-Royal SC8440?
A mortise body will not drop into a cylindrical prep. The Schlage PC10 is a Grade 1 passage cylindrical lock, non-keyed with rose, for 1-3/4 inch doors, and it uses the bored prep that door already has. The SC8440 is a mortise lock type and needs a milled pocket plus a faceplate cutout for its 8 inch by 1-7/32 inch armor front. Confirm the existing prep before ordering either.
13) Is the Cal-Royal SC8440 heavy duty enough for a school or hospital corridor?
The lock body conforms to ANSI/BHMA A156.13 Series 1000 Operational and Security Grade 1 and has been tested past 1,000,000 cycles. The case is wrought steel with zinc dichromate plating, and the armor front is brass or stainless. It's a commercial-rated lock, which is why it shows up in education, healthcare, government, and multi-tenant residential work.
14) What trim and finish do I have to pick when ordering an SC8440 mortise lockset?
Two choices on the order. Finish comes in US3 polished brass, US4 satin brass, US10B antique bronze oiled, US26D satin chrome, and US32D satin stainless steel. Trim is a sectional or wide escutcheon design, and the options are AE, AS, GE, GS, HE, HS, JE, JS, SE, SS, TE, TS, WE, and WS. Both sectional and escutcheon styles mount on the same L9000-pattern prep, so trim style is an aesthetic call, not a drilling one.
15) The SC8440 is a privacy lock. What do I order for keyed openings on the same job?
For a keyed opening you need a different function, not this one. The SC8440 has no cylinder, though Cal-Royal's keyed mortise bodies in the same family use a 6-pin solid brass C keyway, and the interchangeable core versions accept 6 or 7 pin SFIC cores from BEST, FALCON, and ARROW, which lets a facility on a BEST core system key the keyed doors into the existing system. Staying with one brand across the job keeps trim and door prep consistent.
16) I'm standardizing a building on Cal-Royal mortise locks. What matches the SC8440 on the non-privacy doors?
Match the prep first: anything you pair with it needs the same 2-3/4 inch backset, 3-7/8 inch center-to-center, and 1-3/4 inch door thickness so the trim holes stay common across the building. Within the comparable Grade 1 mortise range, the Corbin Russwin ML2003 is a classroom function lock for 1-3/4 inch doors, the Falcon MA101 is a Grade 1 heavy duty passage with field reversible operation and a fire rating, and the Sargent 7925 covers corridor/dormitory with a single cylinder deadbolt. Confirm trim style matches what the SC8440 openings are getting.
17) Should I use a mortise privacy lock like the SC8440 or a cylindrical one?
A mortise lock goes into a pocket routed into the door edge and carries both a 3/4 inch latch and a separate 1 inch deadbolt in one steel case, which is why it holds up on high-traffic commercial openings and why it's the one that gets specified for fire doors. A cylindrical lock like the Schlage PC10 bores through the face of the door instead, installs faster, and costs less labor, but you don't get the independent deadbolt. If the door is already mortise prepped, stay mortise. If it's bored, changing over means a new door or a wrap.
18) The restroom door does not need a deadbolt, just a latch. What is a simpler mortise lock than the Cal-Royal SC8440?
Drop to a passage or plain privacy body. The Schlage PM010 is a Grade 1 passage latch mortise lock, non-keyed, for 1-3/4 inch doors, and the Falcon MA101 is a Grade 1 heavy duty MA Series mortise passage lock that is field reversible and fire rated. The Hager 3810S is a 3800 Series Grade 1 passage mortise lock with rose trim and a 2-3/4 inch backset. All three latch only, with no locking from inside. The SC8440 adds the privacy function plus a 1 inch throw hardened deadbolt, so choose it when the occupant needs to secure the door from within.
19) Is a Sargent 4874 mortise deadbolt a substitute for the Cal-Royal SC8440?
No. The Sargent 4874 is a double cylinder mortise deadbolt from the 4870 Series with a 2-3/4 inch backset. It shares the SC8440 backset, but it is a deadbolt only, keyed both sides, with no latch and no lever. The SC8440 is a lever-handled lockset with a 3/4 inch latch bolt and a 1 inch deadbolt in one body, non-keyed, on a 2-3/4 inch backset. A 4874 is what you add to a door that already has a latch, not what replaces a privacy lockset.
20) What is the electronic version of a privacy mortise lock like the Cal-Royal SC8440?
The Schlage CO-100-MS-40-KP is a standalone electronic mortise lock in privacy function, CO Series, Grade 1 heavy duty, for 1-3/4 inch doors with a keypad reader. It matches the SC8440 on function, grade and door thickness while adding code-based credential control. The SC8440 is a mechanical lockset with no electronics, so it needs no power, wiring or battery service at the opening.
21) Can a Schlage L0170 dummy trim be used in place of the Cal-Royal SC8440?
No. The Schlage L0170 is a half dummy trim, a Grade 1 non-keyed lever with no working lock mechanism, listed for 1-3/4 inch doors in the L Series. It is a pull for an inactive leaf. The SC8440 is a working mortise lockset with a 3/4 inch latch and a 1 inch deadbolt on a 2-3/4 inch backset and a 3-7/8 inch center-to-center between lever and cylinder. Both sit on 1-3/4 inch doors, but only the SC8440 latches or secures one.
22) We standardize on BEST SFIC cores. Does the Cal-Royal SC8440 fit that program, or do we need BEST lock bodies?
The SC8440 comes with a 6-pin solid brass C keyway as standard, and its interchangeable core version accepts compatible 6 or 7 pin cores in BEST, FALCON and ARROW SFIC, so it can join an existing BEST core program. If the requirement is a BEST lock body rather than core compatibility, the 45H Series is a heavy duty mortise lock body in public entrance function that is field reversible, and the 45HCA Series is a heavy duty mortise lockbody with intruder function. The SC8440 lock body is field reversible as well, so hand does not need to be called out at order.
23) What mortise lock should be used instead of the Cal-Royal SC8440 on an electrified opening tied to access control?
For a wired opening, the BEST 45HW Series is a heavy duty wired electromechanical mortise lock running 12V or 24V, and the Schlage L9092EU with 03A trim is a heavy duty electric lock/unlock outside lever mortise lock, keyed outside, with request to exit, at 12/24VDC on 1-3/4 inch doors. The Command Access ML190 Series is a heavy duty motorized mortise lock in storeroom function with field selectable EL/EU operation at 24VDC. The SC8440 is mechanical with no electrical option, so it does not tie into an access control panel.
24) Is the Alarm Lock DL4500 electronic mortise deadbolt an alternative to the Cal-Royal SC8440 for privacy?
They solve the privacy problem differently and they do not fit the same door. The DL4500 Series is a Grade 1 electronic mortise deadbolt with 2,000 user codes and a privacy keypad, listed for 1-5/8 inch to 1-7/8 inch doors. The SC8440 is a Grade 1 mechanical privacy lockset for 1-3/4 inch doors, with a lever and a 1 inch deadbolt on a 2-3/4 inch backset. The DL4500 is deadbolt function only with code management; the SC8440 gives latch and deadbolt with no codes to administer.
25) Does the SC8440 need power or wiring run to the door?
No. It's a purely mechanical lockset, no electronics, no wiring, no power supply at the frame. If the job calls for credential or keypad access on a privacy opening, that's a different product line, for instance the Schlage CO-100 standalone keypad mortise lock in privacy function or the Dormakaba E-Plex 2066 pushbutton keyless mortise lock.
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Does the Cal-Royal SC8440 SS US26D come with a warranty?
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