Cal-Royal SC8071 Grade 1 Class...
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$349.09

Cal-Royal SC8071 Grade 1 Classroom Security Mortise Lockset with Interchangeable Core Prep

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Model: SC8071 SS US26D
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$349.09
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Cal-Royal SC8071 Grade 1 Classroom Security Mortise Lockset with Interchangeable Core Prep

The Cal-Royal SC8071 is a Grade 1 classroom security 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, zinc dichromate plated lock case, this double-cylinder lockset conforms to ANSI A156.13 Grade 1 standards and is tested to exceed 1,000,000 cycles. Designed to retrofit Schlage L9000 Series mortise locks without drilling additional holes, it accepts 6 or 7 pin interchangeable cores compatible with BEST, FALCON, and ARROW systems.

Key Features

  • Door & Backset Specifications: Fits 1 ¾" (44.5mm) thick doors standard with a 2 ¾" (70mm) only backset and 3 7/8" (98mm) center-to-center measurement from lever to cylinder.
  • Heavy-Duty Durability: Lock body conforms to ANSI A156.13 Grade 1 operational and dimensional performance, exceeding 1,000,000 test cycles for long-term reliability in high-traffic applications.
  • Robust Construction: Heavy-duty wrought steel lock case with zinc dichromate plating; deadbolt is hardened stainless steel with 1" (25.4mm) throw, and the latch bolt is one-piece stainless steel with a ¾" (19mm) throw and anti-friction reversible tongue.
  • Field Reversible Handing: Lock bodies are easily field reversible with no need to specify hand when ordering, simplifying stocking and installation.
  • Interchangeable Core Compatibility: Accepts compatible 6 or 7 pin interchangeable cores from BEST, FALCON, and ARROW, with a 6-pin solid brass "C" keyway standard.
  • Armor Faceplate: Brass or stainless steel faceplate measuring 8" x 1 7/32" (203mm x 31.3mm) per ANSI Standard A115.1, paired with a brass or stainless steel strike featuring a curved lip with dust box.
  • Free-Wheeling Clutch Lever: The outside lever incorporates a clutch design that rotates when locked, preventing excessive force from being applied and reducing the chance of lever breakage or damage.
  • Retrofit Convenience: Can retrofit Schlage L9000 Series mortise locks without drilling any additional holes for sectional and escutcheon trims, with no exposed mounting screws on outside or 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
  • Latch Throw: 3/4" (latch), 1" (deadbolt)
  • Keyed Function: Double Cylinder
  • 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 SC8071?

Cal-Royal SC8071 mortise locksets deliver professional-grade reliability with heavy-duty wrought steel construction, hardened stainless steel components, and a lock body rated to exceed 1,000,000 test cycles under ANSI A156.13 Grade 1 standards. Engineered for demanding classroom and commercial security applications, the free-wheeling clutch lever and interchangeable core compatibility make this lockset a dependable choice where consistent performance is 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)
Keyed Function:
Double Cylinder
Commercial/Residential:
Commercial
Lock Type:
Mortise
Keyed:
Yes
Handle Type:
Lever
Lock Function:
Classroom Security
Product Attribute:
Mortise Locks
Electronic:
No
Product Model:
SC8071
(CTC) Center-to-Center:
3-7/8"
Product Function:
Classroom Security
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 SC8071 SS US26D – Frequently Asked Questions

1) Will the Cal-Royal SC8071 mortise lockset drop into my existing Schlage L9000 prep?
Yes. The SC8071 is built to retrofit Schlage L9000 Series mortise locks without drilling any additional holes, for both sectional and escutcheon trims. It uses the same 2-3/4 inch backset and a 3-7/8 inch center-to-center from lever to cylinder, and the armor faceplate is 8 x 1-7/32 inches per ANSI A115.1, so the existing pocket and face cutout carry over. Outside and inside trims mount with no exposed screws.
2) Do I have to specify handing when ordering the SC8071 mortise lockset?
No. The SC8071 lock body is field reversible, so you order one part and set the hand on site. The latch bolt has an anti-friction reversible tongue. That makes it practical to stock a single lock for all four hands across a building.
3) Does the Cal-Royal SC8071 take Best SFIC cores so I can stay on my existing keying system?
Yes. The interchangeable core version accepts compatible 6 or 7 pin SFIC cores from BEST, FALCON and ARROW, so a facility already keyed on small format interchangeable core can pin these to the existing system. It ships standard with a 6-pin solid brass C keyway.
4) Will the SC8071 latch and bolt work with my existing ANSI strike?
The latch bolt throws 3/4 inch and the hardened stainless deadbolt throws a full 1 inch, so the strike and frame pocket have to accept a 1 inch bolt projection. The lockset comes with a brass or stainless strike with a curved lip and dust box, so if the existing frame prep is standard ANSI you can use the supplied strike rather than reworking the jamb.
5) Can I use the Cal-Royal SC8071 on a 3-hour fire rated door?
Yes. The SC8071 is UL and cUL Listed for A label (3-hour) fire doors, with the letter F and UL symbol stamped on the armor faceplate, and it meets positive pressure requirements under UL 10C and UBC 7-2 (1997). Inspectors look for that stamped faceplate, so leave it visible.
6) Is the SC8071 a classroom security lock keyed from both sides?
It is a double cylinder classroom security mortise lockset, which means a key is used on both the inside and outside, letting a teacher lock the corridor side from within the room without opening the door. It is mechanical, with no electronics or wiring involved.
7) If we want credential-based access on classroom doors instead of a keyed lock, what replaces the SC8071?
The TownSteel FME-2000 is a Grade 1 heavy duty classroom mortise lockset with RFID technology for 1-3/4 inch doors, and the FME-4000 is an electronic intruder classroom mortise lockset with RFID, also Grade 1 heavy duty for 1-3/4 inch doors. Both cover the same door thickness as the SC8071 but run on credentials, where the SC8071 is a non-electronic keyed mechanical lockset.
8) Is the SC8071 tough enough for a school corridor or high traffic entry?
It conforms to ANSI/BHMA A156.13 Series 1000 Operational and Security Grade 1 and is tested past 1,000,000 cycles. The case is heavy wrought steel with zinc dichromate plating. The outside lever uses a free-wheeling clutch that rotates when the lock is locked, so someone yanking on it does not snap the lever, which is the usual failure in school and dorm traffic.
9) What do I need to pick besides the lock body when ordering the SC8071?
Two choices. Finish, in US3 polished brass, US4 satin brass, US10B antique bronze oiled, US26D satin chrome, or US32D satin stainless steel. And trim, from fourteen sectional and wide escutcheon designs: AE, AS, GE, GS, HE, HS, JE, JS, SE, SS, TE, TS, WE and WS. Handing is not a choice, the body reverses in the field.
10) Does the Cal-Royal SC8071 meet ADA lever requirements?
Yes. The SC8071 uses lever trim and is stated to meet ADA requirements, designed for barrier free application, so it suits accessible routes where a knob would not pass.
11) We need keypad classroom function on doors thicker than 1-3/4 inch - what should we use instead of the SC8071?
The SC8071 is specified for 1-3/4 inch doors. For thicker stock, the Alarm Lock DL2700CR Trilogy T2 electronic mortise lock is a Grade 1 classroom function unit covering 1-5/8 to 1-7/8 inch doors, and the DL3500CR Trilogy is a Grade 1 classroom function keypad lock over the same 1-5/8 to 1-7/8 inch range with 300 user codes. Both are keypad-operated rather than keyed.
12) What mortise lock should I order if the opening needs storeroom rather than classroom function?
The Accentra 8805FL from the 8800 Series is a Grade 1 storeroom function mortise lock with an Arcadia lever. The Command Access ML190 is a heavy-duty storeroom function motorized mortise lock with field selectable EL/EU operation on 24VDC if the door is being tied into access control. The Cal-Royal SC8071 is a classroom security function, double cylinder, keyed mechanical lockset.
13) Is the Schlage L0170 or PM010 a substitute for the SC8071?
No. The Schlage L0170 is a Grade 1 half dummy trim, non-keyed, and the PM010 is a Grade 1 passage latch mortise lock, also non-keyed - neither secures the opening. The Cal-Royal SC8071 is a keyed double cylinder classroom security mortise lockset. The L0170 and PM010 are both listed for 1-3/4 inch doors, so they are dimensionally at home in the same openings, but they are trim and passage hardware, not locking functions.
14) For a dormitory or corridor opening rather than a classroom, what heavy duty mortise lock compares?
The Sargent 7925 from the 7900 Series is a Grade 1 heavy duty corridor/dormitory exit function mortise lock with rose trim and a single cylinder deadbolt. The Cal-Royal SC8071 is a classroom security function with a double cylinder arrangement and a hardened stainless steel deadbolt with a 1 inch throw alongside a 3/4 inch latch throw.
15) What is a good non-keyed Grade 1 mortise lock to pair with the SC8071 on the same corridor?
The Hager 3810S is a Grade 1 passage mortise lock with rose on a 2-3/4 inch backset for 1-3/4 to 2-1/2 inch doors, and the 3810E is the same passage function with escutcheon trim. The Hager 3850E is a Grade 1 non-keyed office function mortise lock with lever and escutcheon, also 2-3/4 inch backset. All three share the 2-3/4 inch backset the Cal-Royal SC8071 uses, so door prep is consistent across the run.
16) Can a Sargent 4874 mortise deadbolt do the same job as the SC8071?
Not on its own. The Sargent 4874 from the 4870 Series is a double cylinder mortise deadbolt on a 2-3/4 inch backset - deadbolt only, with no latch or lever. The Cal-Royal SC8071 is a double cylinder classroom security lockset that carries both a 1 inch throw deadbolt and a 3/4 inch throw latch bolt with anti-friction reversible tongue, plus lever trim. The 4874 matches the SC8071's 2-3/4 inch backset if you are adding a separate deadbolt above a latch-only lock.
17) For a behavioral health unit, is the SC8071 the right mortise lock or should I look at anti-ligature trim?
For ligature-resistant openings the TownSteel MRX-L-01 is a Grade 1 heavy duty 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 satin stainless ligature resistant arch trim. The Marks USA 5PDN is a Grade 1 ligature resistant hospital passage push/pull paddleset in satin stainless. The Cal-Royal SC8071 uses standard lever trim and is a keyed classroom security function, so it suits classrooms and corridors rather than patient rooms.
18) Which mortise lock works if the classroom door has to be released from an access control panel?
The Schlage L9092EU with 03A trim is a heavy duty electric lock/unlock outside lever mortise lock, keyed outside, with request to exit and 12/24VDC operation for 1-3/4 inch doors. The BEST 45HW is a heavy duty wired electromechanical mortise lock with 12V/24V operation. The Cal-Royal SC8071 is a non-electronic mechanical lockset, so it has no electrified option for remote release.
19) Are the Emtek mortise entrance locksets an alternative to the Cal-Royal SC8071?
No. The Emtek 3019 Brisbane, 3102 Memphis, 3104 Hamilton and 3106 Manhattan mortise entrance locksets are all dummy function - decorative trim with no latching or locking action. The Cal-Royal SC8071 is a keyed, commercial-rated classroom security mortise lockset meeting Grade 1 standards.
20) What mortise lock should I use for a bed/bath or privacy opening instead of the SC8071?
The Hager 3840S is a Grade 1 privacy bed/bath mortise lock on a 2-3/4 inch backset for 1-3/4 to 2 inch doors, matching the backset the Cal-Royal SC8071 uses. If the privacy door needs electronic control, the Schlage CO-100-MS-40-KP is a Grade 1 heavy duty standalone electronic mortise lock in privacy function with a keypad reader for 1-3/4 inch doors. The SC8071 itself is a keyed classroom security function.
21) Is the Falcon MA101 a drop-in alternative for the SC8071?
Only if the opening does not need to lock. The Falcon MA101 is a Grade 1 heavy duty mortise passage/hall/closet lock in the MA Series, fire rated and field reversible. The Cal-Royal SC8071 is also field reversible and carries Grade 1 standing, but it is a keyed double cylinder classroom security function with a deadbolt, so it secures the door where the MA101 only latches it.
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Does the Cal-Royal SC8071 SS US26D come with a warranty?
Absolutely. The Cal-Royal SC8071 SS US26D is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
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