Cal-Royal SC8070 Grade 1 Class...
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$311.92
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Cal-Royal SC8070 Grade 1, Classroom Mortise Lockset

Cal-Royal SC8070 Grade 1 Classroom Mortise Lockset with Interchangeable Core Prep

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Model: SC8070 SS US26D
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$311.92
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Cal-Royal SC8070 Grade 1 Classroom Mortise Lockset with Interchangeable Core Prep

The Cal-Royal SC8070 is a Grade 1 classroom mortise lockset engineered for 1 ¾" (44.5mm) thick 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, this fully reversible, non-handed lockset conforms to ANSI A156.13 Grade 1 standards and is tested to exceed 1,000,000 cycles, making it a dependable choice for high-traffic commercial and educational environments. It can retrofit Schlage L9000 Series mortise locks without drilling additional holes for sectional and escutcheon trims.

Key Features

  • Door Thickness Compatibility: Designed for 1 ¾" (44.5mm) standard door thickness.
  • Backset & Center-to-Center: 2 ¾" (70mm) backset only, with 3 7/8" (98mm) center of lever to center of cylinder.
  • Heavy-Duty Durability: Lock case conforms to ANSI A156.13 Grade 1 and exceeds 1,000,000 cycles for long-term reliability in high-traffic applications.
  • Heavy-Duty Construction: Wrought steel lock case with zinc dichromate plating; brass or stainless steel armor faceplate measuring 8" x 1 7/32" (203mm x 31.3mm) per ANSI A115.1.
  • Field Reversible Lock Hand: Lock bodies are easily field reversible, eliminating the need to specify hand when ordering.
  • Deadbolt & Latch Bolt: 1" (25.4mm) throw hardened stainless steel deadbolt; ¾" (19mm) throw one-piece stainless steel latch bolt with anti-friction reversible tongue.
  • Interchangeable Core Compatibility: Accepts compatible 6 or 7-pin cores from BEST, FALCON, and ARROW; standard 6-pin solid brass "C" keyway.
  • Clutch Lever Design: Outside lever features a free-wheeling clutch that rotates when locked, reducing the chance of lever breakage from excessive force.
  • Retrofit Capability: Can retrofit Schlage L9000 Series mortise locks without drilling additional holes for sectional and escutcheon 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
  • Latch Throw: 3/4" (latch), 1" (deadbolt)
  • Commercial/Residential: Commercial
  • Keyed: Yes
  • Electronic: No
  • (CTC) Center-to-Center: 3-7/8"
  • 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 SC8070?

Cal-Royal SC8070 mortise locksets deliver professional-grade reliability with a heavy-duty wrought steel lock case rated to exceed 1,000,000 cycles under ANSI A156.13 Grade 1 testing. Engineered for demanding commercial and educational applications, the field-reversible design and interchangeable core compatibility make it a versatile, dependable choice where consistent performance and fire-rated compliance 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
Keyed:
Yes
Handle Type:
Lever
Lock Function:
Classroom
Product Attribute:
Mortise Locks
Electronic:
No
Product Model:
SC8070
(CTC) Center-to-Center:
3-7/8"
Product Function:
Classroom
Door Hand Direction:
Field Reversible
Door Thickness Range:
1-3/4"
Face Plate:
Brass or stainless steel, 8" x 1-7 /32"
Product Substrate:
Steel
Product Category:
Mechanical Locks
Backset (Distance):
2-3/4"
Department:
Door Hardware

Cal-Royal SC8070 SS US26D – Frequently Asked Questions

1) Can I use the Cal-Royal SC8070 to replace a Schlage L9000 mortise lock without redrilling the door?
Yes. The SC8070 retrofits Schlage L9000 Series mortise locks without drilling additional holes, for both sectional and escutcheon trims. That works because it shares the 2-3/4 inch backset and 3-7/8 inch lever-to-cylinder spacing, so the existing trim holes line up. Pick the sectional (S) or escutcheon (E) trim to match what is on the door now.
2) Do I have to specify hand when ordering the Cal-Royal SC8070 classroom mortise lock?
No handing to call out. The SC8070 lock body is field reversible, and the latch bolt uses a reversible anti-friction tongue, so one lock covers left and right hand openings. That is the reason a property manager can stock a single part number for a whole building instead of splitting inventory by hand.
3) Does the Cal-Royal SC8070 take BEST small format interchangeable cores?
It does. Interchangeable core versions accept compatible 6 or 7 pin SFIC cores from BEST, Falcon, and Arrow, so a facility already keyed on a BEST core system can drop its own core straight in. Ordered without a core it ships with a 6-pin solid brass C keyway cylinder.
4) How does the classroom function on the Cal-Royal SC8070 actually work at the door?
Classroom function: the outside lever is locked and unlocked by key from the corridor side, and the inside lever always retracts the latch for free egress. There is also a keyed deadbolt with a 1 inch throw, and the 3/4 inch latch bolt is separate from it. The outside lever runs on a free-wheeling clutch, so when it is locked the lever spins instead of transferring force into the spindle, which is what keeps levers from snapping in a school corridor.
5) Is the Cal-Royal SC8070 mortise lockset fire rated for a 3 hour door?
Yes. The SC8070 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, and it meets positive pressure requirements under UL 10C and UBC 7-2 (1997). Operationally it is ANSI/BHMA A156.13 Series 1000 Grade 1 and tested past 1,000,000 cycles. It also meets ADA requirements for barrier free application.
6) My doors are thicker than 1-3/4 inch. Can I still use the Cal-Royal SC8070?
No, that is the wrong lock for those openings. The SC8070 is built for 1-3/4 inch doors only. For thicker leaves, Hager's 3800 Series covers 1-3/4 to 2-1/2 inches (the 3810E passage with escutcheon and 3810S with rose, and the 3850E office lever, all on a 2-3/4 inch backset), so the same backset carries over even though the function differs. Match the function you need before you match the thickness.
7) What is the closest mechanical Grade 1 classroom mortise lock to the Cal-Royal SC8070?
The Corbin Russwin ML2003 is the nearest straight equivalent: a Grade 1 mortise classroom lockset in the ML2000 Series, listed for 1-3/4 inch doors, the same door thickness the SC8070 is built for. Both are keyed mechanical mortise locks with classroom function, so the opening prep and the keying plan carry over. The SC8070 differs in its interchangeable core prep, taking 6 or 7 pin cores in BEST, FALCON and ARROW SFIC format with a 6-pin solid brass C keyway standard, which matters if the facility is already keyed to a small format core system.
8) Is there a classroom mortise lock with a keypad instead of a key?
Yes. The Alarm Lock DL3500CR Trilogy is a Grade 1 electronic mortise lock with classroom function and 300 user codes, and the DL2700CR Trilogy T2 is a Grade 1 classroom electronic mortise lock with a weatherproof design. Both are listed for doors 1-5/8 to 1-7/8 inch thick. The SC8070 is a mechanical, keyed lockset with no electronics, so it needs no batteries and no code management, but it also gives no audit trail or code changes without rekeying.
9) What mortise lock suits an aluminum storefront door with an Adams Rite deadlatch?
The Alarm Lock DL1300NW Trilogy Networx is a wireless electronic mortise lock with a keypad made for Adams Rite deadlatches, and the Dormakaba E-Plex 2066 Series is an electronic pushbutton keyless mortise lock listed for wide stile doors. The SC8070 is built for 1-3/4 inch thick doors with a 2-3/4 inch backset and an 8 inch armor faceplate, dimensions suited to hollow metal and wood commercial doors rather than narrow aluminum stiles.
10) What is the difference between sectional and escutcheon trim on the Cal-Royal SC8070, and which do I order?
Trim comes in fourteen options paired by style: an S code is sectional (separate roses for the lever and the cylinder) and an E code is the wide escutcheon plate that covers both in one piece. Choose by what is on the door now. Escutcheon hides old sectional trim scars and heavier prep; sectional gives a cleaner look on a door with no damage. Styles run A, G, H, J, S, T, and W, each in both S and E. Finishes are US3 polished brass, US4 satin brass, US10B antique bronze oiled, US26D satin chrome, and US32D satin stainless steel.
11) I need a Grade 1 classroom mortise lock but not Cal-Royal. What else is comparable?
The closest mechanical equivalent is the Corbin Russwin ML2003 from the ML2000 Series, a Grade 1 classroom mortise lockset also listed for 1-3/4 inch doors. If the requirement is credential-based rather than key-based, TownSteel's FME-2000 Series is a Grade 1 heavy duty classroom mortise lockset with RFID, and the FME-4000 Series adds electronic intruder classroom function. The SC8070 is the purely mechanical option with no electronics to power or manage.
12) Is the Cal-Royal SC8070 heavy duty enough for a high traffic school or hospital corridor?
The lock case is wrought steel with zinc dichromate plating, tested to exceed 1,000,000 cycles under ANSI A156.13 Grade 1, and the armor faceplate is brass or stainless steel. Deadbolt is hardened stainless steel, latch bolt is one-piece stainless. That is the construction spec for commercial corridor traffic, and the clutched outside lever is the part that survives students hanging on a locked lever.
13) What mortise lock should be specified when the opening has to be locked and unlocked from an access control panel?
The Command Access ML190 Series is a heavy-duty motorized mortise lock with field selectable fail safe or fail secure operation on 24VDC in storeroom function, and the BEST 45HW Series is a heavy duty wired electromechanical mortise lock running on 12V or 24V. The Schlage 03A electric lock/unlock outside lever mortise lock is a heavy duty corridor function unit, keyed outside, with request to exit and 12/24VDC operation, for 1-3/4 inch doors. The SC8070 is entirely mechanical, so it cannot be released remotely, but it needs no power run to the frame.
14) What mortise lock should be ordered for an opening that does not need to lock at all?
For a non-locking opening, the Falcon MA101 is a Grade 1 heavy duty mortise passage lock with field reversible operation and a fire rating, and the Schlage PM010 is a Grade 1 passage latch mortise lock, non-keyed, for 1-3/4 inch doors. The Hager 3810S and 3810E are Grade 1 passage mortise locks with a 2-3/4 inch backset, the 3810S with rose trim and the 3810E with escutcheon, both for doors 1-3/4 to 2-1/2 inch. The SC8070 is a keyed classroom lockset and shares the 2-3/4 inch backset, so a passage unit drops into the same mortise pocket dimension.
15) What is the difference between the Cal-Royal SC8070 and a BEST 45H mortise lock body?
The BEST 45HCA units are heavy duty mortise lock bodies sold as the lock body itself, in public entrance function on the 45H Series and intruder function on the 45HCA intruder lockbody, both field reversible in the case of the 45H. The SC8070 is a complete classroom lockset supplied with lever trim and a choice of sectional or wide escutcheon trims in codes such as AE, AS, GE and SE, so no separate trim order is required. Both are field reversible, so hand does not need to be specified.
16) Can a Sargent 4874 or Kaba Ilco 185 be used in place of an SC8070 classroom lock?
No, those are deadbolt-only devices. The Sargent 4874 is a double cylinder mortise deadbolt with a 2-3/4 inch backset in the 4870 Series, and the Kaba Ilco 185 Series is a no-handing mortise deadbolt. Neither carries a latch bolt or lever, so the door will not latch on closing. The SC8070 combines a 3/4 inch throw latch bolt with a 1 inch throw deadbolt in one mortise case with lever trim, which is what a classroom opening normally requires.
17) What mortise lock is used on a behavioral health or ligature resistant opening instead of a standard classroom lockset?
The TownSteel MRX-L-01 is a Grade 1 heavy duty anti-ligature lever mortise lockset in stainless steel with passage function for 1-3/4 inch doors, and the MRX-A-01 is the same passage function with a ligature resistant arch trim in satin stainless steel. For push/pull operation, the Marks USA 5PDN is a Grade 1 hospital passage mortise paddleset that is ligature resistant and ADA compliant in satin stainless steel. The SC8070 is a keyed classroom lockset with a conventional lever, meets ADA requirements, and is offered in US32D satin stainless steel among its finishes.
18) Is the Schlage L0170 an alternative to a Cal-Royal SC8070?
Only for an inactive leaf. The Schlage L0170 is a Grade 1 heavy duty mortise dummy trim, non-keyed, for 1-3/4 inch doors, meaning it is a half dummy lever with no latch or bolt mechanism. It suits the fixed leaf of a pair where the SC8070 handles the active leaf. The SC8070 is a keyed classroom lockset with a working latch and deadbolt on the same 1-3/4 inch door thickness, and it can retrofit Schlage L9000 Series mortise locks without drilling additional holes for sectional and escutcheon trims.
19) What mortise lock is used for a dormitory or corridor opening that needs the inside to release the deadbolt on egress?
The Sargent 7925 is a Grade 1 heavy duty mortise lock in the 7900 Series with dormitory exit function, rose trim and a single cylinder deadbolt, which suits corridor and dormitory openings. The SC8070 carries classroom function with a 1 inch throw hardened stainless steel deadbolt and 3/4 inch throw latch bolt, so the two differ in how the inside lever and deadbolt interact rather than in duty level, both being Grade 1.
20) For a privacy opening such as a restroom, what mortise lock replaces a classroom lockset?
The Hager 3840S is a Grade 1 privacy mortise lock with a 2-3/4 inch backset for doors 1-3/4 to 2 inch thick, matching the SC8070 backset so the mortise pocket depth carries over. Where a non-keyed office function is wanted instead, the Hager 3850E is a Grade 1 office mortise lock with lever and escutcheon, non-keyed, also 2-3/4 inch backset for 1-3/4 to 2-1/2 inch doors. The SC8070 is keyed classroom function on 1-3/4 inch doors.
21) Is there a Grade 1 storeroom mortise lock to pair with classroom locks in the same building?
The Accentra 8805FL is a Grade 1 storeroom mortise lock in the 8800 Series with an Arcadia lever, which suits mechanical and storage rooms where the outside lever stays locked at all times. Using it alongside the SC8070, a Grade 1 classroom lockset, keeps the whole building on Grade 1 mortise hardware with lever trim while giving each room the function its use requires.
22) What mortise lock offers mobile phone credentials instead of a key?
The Schlage Electronics LEMD-GRW is a Grade 1 ENGAGE Series wireless mortise lock with a 125kHz proximity reader and mobile enabled deadbolt with LED in Greenwich trim, right hand, with a 3 hour fire rating. The LEBMB-ADD is a Grade 2 mobile enabled mortise lock with push button and LED covering privacy, office and apartment functions on 1-3/4 inch doors with a 3 hour fire rating. The SC8070 is mechanical and keyed, UL and cUL listed for A label 3 hour fire doors, and takes SFIC cores rather than credentials.
23) Can a Codelocks CL2255 be used where a Grade 1 classroom mortise lockset is specified?
The Codelocks CL2255 is a medium duty electronic tubular mortise latch in the CL2000 Series in a brushed steel finish. Medium duty and a tubular mortise latch put it in a different service class from the SC8070, which conforms to ANSI/BHMA A156.13 Series 1000 Operational and Security Grade 1 and is tested to exceed 1,000,000 cycles for high-traffic commercial use. Where the specification calls out Grade 1, the CL2255 will not satisfy it.
24) Can I standardize a whole building on the Cal-Royal SC8070 across different door functions?
For the classroom openings, yes, one part number covers left and right hand since the body is field reversible. But the SC8070 is classroom function only, so restrooms, storerooms, and passage doors need different bodies. In the same prep family you can pair it with a storeroom lock like the Accentra 8805FL, or a Grade 1 passage mortise like the Falcon MA101 or Schlage PM010. Keep the finish consistent across them, US26D satin chrome and US32D satin stainless are the two that usually match existing commercial hardware.
25) Are the Emtek Brisbane and Memphis mortise entrance locksets substitutes for a commercial classroom mortise lock?
No. The Emtek 3019 Brisbane, 3102 Memphis, 3104 Hamilton and 3106 Manhattan mortise entrance locksets are dummy function, so they have no latching or locking mechanism and are used where the trim is decorative on a fixed leaf. The SC8070 is a commercial keyed classroom lockset in steel with a working latch bolt and deadbolt.
26) What keyless pushbutton mortise lock works without batteries?
The Dormakaba PowerPlex P2066 Series is a mortise lock in the PowerPlex 2000 Series, and the E-Plex 2066 Series is an electronic pushbutton keyless mortise lock built for wide stile applications. The E-Plex E5086 is a Grade 1 back to back entry/egress electronic pushbutton and card lock in the 5X86 Series where both sides need credentials. The SC8070 is a mechanical keyed classroom lockset with SFIC prep and no electronics of any kind.
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Does the Cal-Royal SC8070 SS US26D come with a warranty?
Absolutely. The Cal-Royal SC8070 SS US26D is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
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