PDQ GT148 Grade 1 Classroom Cy...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$306.89
PDQ GT148 Grade 1 Classroom Cylindrical Lever Lock

PDQ GT148 Grade 1 Classroom Cylindrical Lever Lock

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Model: GT148BSN626D
$306.89
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$306.89
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PDQ GT148 Grade 1 Classroom Cylindrical Lever Lock

Grade 1 Heavy Duty Commercial Cylindrical Lock

The PDQ GT148 is the Classroom function (ANSI/BHMA F84) of the PDQ GT Series Grade 1 Heavy Duty Cylindrical Lock.

The PDQ GT Series is a Grade 1 heavy duty cylindrical lock certified to ANSI/BHMA A156.2. PDQ positions it as its general purpose Grade 1 lock for everyday commercial exterior and interior openings, with lever torque resistance of 2,200 lbf-in, three times the BHMA/ANSI standard, and cycle testing to over 3 times BHMA standards.

A heavy duty diecast chassis, machined billet steel spindles and a 13 gauge steel anti-rotation plate on the secure side give the lock its strength. A 2:1 latchbolt throw allows a 41 degree lever rotation, which reduces torque and extends the life of the lock. The GT is non-handed, assembled in Lancaster, PA, and offered in Philadelphia, Boston and Miami lever styles.

Key Features

  • Certified to ANSI/BHMA A156.2 Grade 1; UL 10C listed for 3 hour fire doors, single doors up to 4' x 8'
  • 2,200 lbf-in lever torque resistance, 3X the BHMA/ANSI standard
  • Fits doors 1-3/4" to 2-1/4" thick with standard ANSI A156.115 (161) cylindrical prep and through door thru-bolting
  • 2-3/4" backset standard, 2-3/8" optional; ASA strike standard with T-strike or full lip strike optional
  • Keyed functions accept conventional cylinders (SCC keyway standard) or 6 or 7-pin small format IC cores compatible with Best, Falcon and Arrow; large format IC available on the Philadelphia lever only
  • Optional antimicrobial coating and weatherized finish on 626 Satin Chrome
  • Approved for Florida HVHZ (FL 21376) and compliant with ADA and ICC/ANSI 117.1
  • Twenty-five (25) year limited warranty; assembled in the U.S.A. with U.S. and foreign material

Technical Specifications

  • Grade: Grade 1
  • ANSI/BHMA Function: F84
  • Lock Function: Classroom
  • Keyed Function: Single Cylinder
  • Lock Type: Cylindrical
  • Backset (Distance): 2-3/4"
  • Door Hand Direction: Non-Handed
  • Fire Rated: Yes
  • Warranty: 25-year
  • ANSI Standard: A156.2
  • Fire Rating: UL 10C 3-hour, single doors up to 4' x 8'
  • Door thickness: 1-3/4" to 2-1/4" thick, preset for 1-3/4" door
  • Application: Through door thru-bolting
  • Door prep: Standard ANSI A156.115 (161) for cylindrical locks
  • Backset: 2-3/4" standard, 2-3/8" optional
  • Chassis: Heavy duty diecast, investment cast, chromated cold rolled steel and stainless steel mechanism; billet steel spindles for locking functions
  • Front: 2-1/4" x 1-1/8", stainless steel or wrought brass, beveled 1/8" in 2"
  • Strike: ASA standard; T-Strike or Full Lip Strike optional; stainless steel or wrought brass
  • Levers: Philadelphia (SFL and LFL), Boston (SFL), Miami (SFL); solid diecast
  • Rose: 3-3/8" DIA wrought brass, concealed screws
  • Latchbolt: 1/2" throw for 2-3/8" backset, 9/16" throw for 2-3/4" backset
  • Hand: Non-handed
  • Lever rotation: 41 degree standard with 2-3/4" backset; 65 degree with 2-3/4" latch for double doors
  • Keys: Two (2) per lock

Available Options

  • Finish: 605 - Bright Brass, 606 - Satin Brass, 613E - Dark Oxidized Satin Bronze, 619 - Satin Nickel, 622 - Flat Black, 625 - Bright Chrome, 626 - Satin Chrome
  • Lever Style: Philadelphia, Boston, Miami
  • Cylinder: Conventional Cylinder, Less Cylinder, SFIC Prep with 6-Pin Core, SFIC Prep with 7-Pin Core, SFIC Prep, Less Core, SFIC Prep with Construction Core, SFIC Prep with Plastic Construction Core, Schlage LFIC Prep with Schlage Core, Schlage LFIC Prep, Less Core, Schlage LFIC Prep with Construction Core
  • Also selected when ordering: Backset, Strike, Keyway, Keying, Tactile Abrasive Coating, Split Finishes, Lead-Lined Rose, Dust Box, Antimicrobial Coating, Request to Exit, Molex Connector, Weatherized Finish

Each configuration has its own PDQ part number, for example GT148PHL605D.

Cross Reference

PDQ lists the GT148 as the equivalent of: Best 9KxxR, Corbin CL3355, Dorma C170, Falcon T561, Hager 3470, Marks S, Sargent 10G37, Schlage ND70, Accentra 5408LN.

Certifications

  • UL listed for 3 hrs, for single doors up to 4'0" x 8'0"
  • Certified to ANSI/BHMA A156.2, Grade 1
  • California Education Code compliant (functions GT135, GT135LED, GT145)
  • Federal Specification FF-H-10C (superseded by A156.2)
  • Approved for Florida HVHZ, PDQ Product Approval FL 21376, design load +/- 70.0 PSF for single door (3' x 7')
  • Complies with ADA and ICC/ANSI 117.1

Typical Applications

  • Schools
  • Office buildings
  • Retail buildings
  • High-traffic commercial exterior and interior doors

Frequently Asked Questions

Is the GT strong enough for a busy school or office building, or is the XGT needed?
The GT handles standard to heavy commercial traffic and covers most exterior and interior doors in schools, offices and retail buildings. PDQ reserves the XGT, rated to 3,000 lbf-in of torque resistance, for openings facing extreme abuse or vandalism.

Is the GT fire rated and ADA compliant?
Yes. The GT is UL 10C listed for 3 hour fire doors (single doors up to 4' x 8') and complies with ADA and ICC/ANSI 117.1.

Can the GT be used on hurricane rated openings in Florida?
Yes. It is approved for Florida HVHZ installations under PDQ Product Approval FL 21376, with a design load rating of +/- 70.0 PSF on a 3' x 7' single door.

Product Specs

Department:
Door Hardware
Product Group:
Mechanical Locks
Product Subgroup:
Bored Locksets
Product Type:
Leverset
Product Category:
Mechanical Locks
Product Model:
GT148
Commercial/Residential:
Commercial
Series:
GT Series
Grade:
Grade 1
ANSI/BHMA:
F84
Lock Function:
Classroom
Keyed:
Yes
Electronic:
No
Door Hand Direction:
Non-Handed
Warranty:
25-year
Tags:
pdq gt148, gt148 pdq, gt148
Subcategory:
Cylindrical Locks
Duty Level:
Heavy Duty
Product Attribute:
Cylindrical Locks
Lock Type:
Cylindrical
Handle Type:
Lever
Product Function:
Classroom
Keyed Function:
Single Cylinder
Backset (Distance):
2-3/4"
Standard Latch:
1/2" Throw
Standard Strike:
ASA standard
Cylinder and Keyways:
SCC standard (Schlage C compatible)
Fire Rated:
Yes
ADA Compliant:
Yes

PDQ GT148BSN626D – Frequently Asked Questions

1) Will the PDQ GT148 classroom lock fit a 2-inch thick door, or is it only for 1-3/4 inch?
The GT148 covers doors from 1-3/4 inches to 2-1/4 inches thick, so a 2-inch door is within range. It ships preset for 1-3/4 inches, which is the standard commercial thickness, so a thicker door means adjusting the chassis at install. It mounts through a standard ANSI A156.115 (161) cylindrical prep and thru-bolts through the door.
2) Does the PDQ GT148 need to be ordered left or right hand?
No handing to specify. The GT148 is non-handed, so one lock serves either swing and a property manager can stock a single part number for a whole building.
3) What does the classroom function on the PDQ GT148 actually do?
Classroom function, ANSI/BHMA F84: the outside lever is locked and unlocked by key from the outside only, and the inside lever always retracts the latch for free egress. There is no inside button or thumbturn, so a student cannot lock the door from inside the room. It is a single-cylinder keyed lock.
4) My doors are bored on a 2-3/8 inch backset. Can I still use the PDQ GT148?
Yes, order the 238 option. The GT148 is standard at 2-3/4 inches, which is the usual commercial backset, with 2-3/8 inches available as an ordering option. The 2-3/4 version uses a 2-1/4 x 1-1/8 inch faceplate and the 2-3/8 version a 2-1/4 x 1 inch faceplate, and the latch throw changes from 9/16 inch to 1/2 inch.
5) Can I key the PDQ GT148 into my existing Schlage or Best master key system?
Yes, on either platform. Conventional cylinders ship SCC keyway as standard, which is Schlage C compatible, and the keyway list also covers Schlage E, Arrow AR1, Corbin 59A1/60/L4, Russwin D1, Sargent LA and RA-RC, Accentra (Yale) E1R and GA, Falcon E-R, 5-pin Kwikset, and PDQ's restricted TA. For interchangeable core systems, order SFIC prep for 6 or 7-pin small format cores compatible with Best, Falcon and Arrow, or Schlage LFIC prep. Keying options run KD, 0-bitted, KA2, KA4, KA, master keyed, master keyed to existing bittings, and construction master keyed.
6) Is the PDQ GT148 approved for a 3-hour fire rated classroom door?
Yes. The GT148 is UL 10C listed for 3-hour fire doors on single doors up to 4 feet by 8 feet, and it is certified to ANSI/BHMA A156.2 Grade 1. It also complies with ADA and ICC/ANSI 117.1 for lever operation.
7) Which Schlage or Sargent lock does the PDQ GT148 replace?
PDQ cross references the GT148 classroom lock against the Schlage ND70, Sargent 10G37, Best 9KxxR, Corbin CL3355, Falcon T561, Hager 3470, Dorma C170, Marks S, and Accentra 5408LN. Because it uses the standard 161 cylindrical door prep, it drops into an opening already bored for any of those, and you can order it in the matching keyway so it joins the existing key system.
8) Is the PDQ GT148 compliant with California Education Code lockdown requirements?
Not the GT148. PDQ lists California Education Code compliance for the GT135, GT135LED and GT145 functions, which allow locking from inside the classroom. The GT148 is the F84 classroom function, keyed from the corridor side only, so lockdown requires a key in the hallway.
9) Is the GT148 tough enough for a high school corridor, or should I spec the XGT?
The GT handles standard to heavy commercial traffic and is the right pick for most school, office and retail openings, interior or exterior. It is rated at 2,200 lbf-in of lever torque resistance, three times the BHMA/ANSI minimum, with a diecast chassis, billet steel spindles and a 13 gauge anti-rotation plate on the secure side. Step up to the XGT at 3,000 lbf-in only where the opening faces extreme abuse or vandalism.
10) Can the PDQ GT148 go on an exterior door in a Florida hurricane zone?
Yes. The GT148 is approved for Florida HVHZ installation under PDQ Product Approval FL 21376, with a design load of plus or minus 70.0 PSF on a 3 by 7 foot single door. For coastal exposure, the weatherized finish option is available, but only on 626 Satin Chrome.
11) What lever styles and finishes does the PDQ GT148 come in?
Three solid diecast lever designs, Philadelphia, Boston and Miami, in seven finishes: 605 Bright Brass, 606 Satin Brass, 613E Dark Oxidized Satin Bronze, 619 Satin Nickel, 622 Flat Black, 625 Bright Chrome and 626 Satin Chrome. If you are matching existing openings with different hardware inside and out, the SF split finish option lets you specify the outside trim finish first, then the inside. One ordering note for locksmiths: large format IC is offered on the Philadelphia lever only, so a Schlage LFIC job locks you into that lever.
12) What options do I need to decide on when ordering a PDQ GT148?
Beyond lever style and finish, the order form asks for backset (2-3/4 or 2-3/8), strike (ASA, full lip or T), cylinder or core prep, keyway and keying. Then the extras: tactile abrasive coating inside, outside or both sides for hazardous-room identification, lead-lined rose for X-ray rooms, dust box for the strike pocket, antimicrobial coating on the lever and rose (626 only), request to exit switch, and the industry standard Molex connector. Each combination has its own PDQ part number, for example GT148PHL605D.
13) Does the PDQ GT148 work on a pair of doors?
Yes, but the latch changes the feel. With the standard 2-3/4 inch backset latch the lever rotates 41 degrees, which is the 2:1 throw arrangement that lowers torque on the chassis. Specified with the 2-3/4 inch latch for double doors, lever rotation goes to 65 degrees.
14) Does the PDQ GT148 classroom lock come with keys?
Two keys ship per lock on keyed configurations. If you prefer to key them yourself, order the OB option, 0-bitted with two blank keys, or order SFIC prep less core and supply your own cores.
How fast can I get the PDQ GT148BSN626D delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the PDQ GT148BSN626D come with a warranty?
Absolutely. The PDQ GT148BSN626D is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the PDQ GT148BSN626D?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
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