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Delaney E Series - MD Style Keyed Classroom Door Leverset
Product Technologies:
Classroom Function: Deadlocking latch bolt operated by key in outside lever or reotating inside lever. Outside lever locked or unlocked by key. Inside lever is always unlocked.
Features:
- Independent Torsion Spring
- Removable Through Bolts
- Concealed Mounting Screws
- Anti-Friction Latch Retractor
- Clutch Function Panic Proof - Push/Turn
- Panic Proof - Push/Turn
Specifications:
Backset: 2-3/4” UL Latch standard, 2-3/8” optional
Door Thickness: 1-3/8” ~ 2”. Adjustable mounting plate
Cylinder: SC4 6-pin standard, KW1 5-pin optional, SC1 5-pin optional
Strikes: 4-7/8” ANSI Strike standard (9109)
Door Prep:
- Cross bore: 2-1/8”
- Edge bore: 1”
- Latch face: 2-3/4”: 1-1/8” x 2-1/4”, 2-3/8”: 1” x 2-1/4”
- Dummies are surface mounted
Latches:
- Entrance: 2-3/4” (E9070T) standard. 2-3/8” (E9060T) optional
- Pass/Priv: 2-3/4” (E9073T) standard. 2-3/8” (E9063T) optional
- Faceplate: 2-3/4”: 1-1/8” x 2-1/4”. 2-3/8”: 1” x 2-1/4” Sq. Corner
- Bolt: 1/2” Stainless Steel throw. Meets 3-Hr. Fire Rating
ANSI & Federal Standards:
- Meets & exceeds requirements of BHMA/ANSI A156.2 Series 4000, GR2, 400,000 Cycles.
- Meets FF-H-106C Federal Standard.
Manufacturer Resources
Product Specs
- Subcategory:
- Bored Locksets
- Series:
- E Series
- Product Group:
- Mechanical Locks
- Product Subgroup:
- Bored Locksets
- Commercial/Residential:
- Commercial
- Lock Function:
- Classroom
- Product Type:
- Leverset
- Grade:
- Grade 2
- Product Attribute:
- Cylindrical Locks
- Product Function:
- Classroom
- Product Category:
- Mechanical Locks
- Department:
- Door Hardware
Delaney Hardware 3M5092 – Frequently Asked Questions
1) How does the classroom function work on the Delaney E Series MD lever?
The outside lever is locked and unlocked by key only, and there is no thumbturn or button on the inside. The inside lever always retracts the deadlocking latch bolt, so the room can always be exited. A teacher locks the corridor side with the key, then pulls the door shut, and the door stays locked to the outside until keyed again. That is why classroom function is specified for rooms that must never be locked against egress.
2) Will this Delaney classroom leverset fit a 1-3/8 inch door, or only a standard 1-3/4?
It covers 1-3/8 inch up to 2 inches thanks to an adjustable mounting plate, so it works on older 1-3/8 inch interior doors, standard 1-3/4 inch commercial doors, and thicker 2 inch slabs without a separate kit.
3) What door prep do I need to bore for the Delaney E Series cylindrical lever?
Standard 2-1/8 inch cross bore with a 1 inch edge bore. Latch face mortise depends on backset: 1-1/8 x 2-1/4 inches for the 2-3/4 inch backset latch, 1 x 2-1/4 inches for the 2-3/8 inch backset latch, square corner faceplate. Since 2-1/8 and 1 inch are the usual bored-lock prep, it drops into most existing cylindrical lock holes.
4) Which backset do I order, 2-3/8 or 2-3/4?
Backset is a required selection. 2-3/4 inches is the standard with the UL latch, and 2-3/8 inches is the option. Measure from the door edge to the center of the existing 2-1/8 inch cross bore and match it. Note the faceplate changes with the choice: 1-1/8 x 2-1/4 inches on the 2-3/4 latch, 1 x 2-1/4 inches on the 2-3/8 latch, so an existing mortise may favor one.
5) Will this Delaney lever latch into the strike already in my frame?
The bolt has a 1/2 inch stainless steel throw and ships with a 4-7/8 inch ANSI strike (9109). If your frame already has the standard 4-7/8 inch ANSI strike prep, the supplied strike drops straight in. On a wood frame with a small T-strike or full-lip strike, you will either reuse that strike or mortise the frame for the ANSI plate.
6) Can I key this Delaney classroom lever to the Schlage or Kwikset keys already in my building?
Keyway is a required choice: SC4 6-pin is standard, with KW1 5-pin and SC1 5-pin as options. SC4 and SC1 are Schlage keyways, KW1 is Kwikset, so pick the one matching the cylinders already on your doors. You also choose keyed different or keyed alike, so a run of classrooms or a group of units can share one key.
7) Is the Delaney E Series MD classroom lever rated for a school or other high traffic commercial door?
It meets and exceeds BHMA/ANSI A156.2 Series 4000, Grade 2, at 400,000 cycles, and also meets Federal Standard FF-H-106C. That puts it in the commercial duty range for classrooms, offices, and multi-family corridors. For a door cycled constantly all day, such as a main entrance or a gym, a Grade 1 cylindrical lock is the heavier specification.
8) For a restroom or conference room door that needs occupancy privacy rather than key control, what should I use instead of the Delaney E Series MD classroom leverset?
The Delaney E Series MD lever is a classroom function lock: the outside lever is locked and unlocked by key, and the inside lever always retracts the latch, so it is built for a keyed staff-controlled opening rather than a room someone locks from inside. For a restroom, conference room, or similar space where the occupant locks the door from within and people outside need to see the door is in use, the Cal-Royal INDLEV-20 is a privacy function lever with a red/green occupancy indicator. It is a different function entirely, not a keyed lock, so it is not a substitute where key control matters.
9) Is this lever handed, and will it survive students hanging on it?
Handing is not a concern on this one. It uses an independent torsion spring and a clutch mechanism that is panic proof push/turn, so force on the locked outside lever spins or gives rather than breaking the spindle or the return spring. That clutch is the main reason it holds up in schools and dorms where levers get abused.
10) I need an occupancy indicator on a restroom instead of a classroom lock. What should I look at?
Classroom function is the wrong choice there, since it has no inside locking and no indicator. The Cal-Royal INDLEV-20 is a privacy indicator leverset with a red/green occupancy indicator, offered in 2-3/8 and 2-3/4 inch backsets, with an adjustable 1-3/8 to 1-3/4 inch door thickness range. Note the Cal-Royal tops out at 1-3/4 inches, so on a 2 inch door the Delaney is the one that fits.
11) Do I have to order through bolts or a strike separately with this Delaney lever?
No. Removable through bolts and concealed mounting screws are part of the lockset, and the 4-7/8 inch ANSI strike (9109) is the standard strike supplied. What you do have to specify on the order is backset, keyway, and whether the locks are keyed alike or keyed different.
12) Which latch part number comes with the Delaney E Series classroom lock?
Classroom is a keyed entrance function, so it takes the entrance latch: E9070T at the 2-3/4 inch backset, or E9060T if you order the 2-3/8 inch backset. The E9073T and E9063T latches are the pass/privacy versions and are not what a keyed classroom lock uses. Useful to know if you are stocking spare latches across a building.
13) Will a Cal-Royal INDLEV-20 drop into the same door prep as the Delaney E Series MD classroom lever?
Both are cylindrical levers offered in the two common commercial backsets. The Delaney E Series MD lever uses a 2-3/4 inch UL latch as standard with 2-3/8 inch optional, a 2-1/8 inch cross bore and 1 inch edge bore, and the Cal-Royal INDLEV-20 is likewise offered in 2-3/8 inch and 2-3/4 inch backset. The meaningful difference is door thickness: the Delaney MD lever carries an adjustable mounting plate covering 1-3/8 inch through 2 inch doors, while the Cal-Royal INDLEV-20 adjusts from 1-3/8 inch to 1-3/4 inch, so on a thicker door the Delaney is the one that still fits.
14) My spec calls out ANSI Grade 2 for the lockset. Does the Cal-Royal INDLEV-20 meet that the way the Delaney E Series MD lever does?
The Delaney E Series MD lever is a Grade 2 lockset that meets and exceeds BHMA/ANSI A156.2 Series 4000, Grade 2 at 400,000 cycles, and also meets the FF-H-106C federal standard, which is what a drawing calling out Grade 2 is asking for. The Cal-Royal INDLEV-20 is described as standard duty commercial grade, which is a different way of stating its duty level, so on an opening where the submittal has to show an A156.2 Grade 2 cycle rating the Delaney E Series MD lever is the one that carries it.
15) Does the anti-friction latch retractor matter on a classroom door?
It does on doors with a closer or a weatherstripped, slightly warped frame. The anti-friction retractor lets the latch slide against the strike lip instead of binding, so the door latches on its own from the closer rather than bouncing back. Paired with the 1/2 inch stainless throw and the 4-7/8 inch ANSI strike, it is the combination you want on a self-closing labeled door.
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Does the Delaney Hardware 3M5092 come with a warranty?
Absolutely. The Delaney Hardware 3M5092 is backed by a manufacturer’s warranty.
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