PDQ GT177 Grade 1 Patio / Privacy Cylindrical Lever Lock
Grade 1 Heavy Duty Commercial Cylindrical Lock
The PDQ GT177 is the Patio / Privacy function (ANSI/BHMA F77) 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: F77
- Lock Function: Patio / Privacy
- Keyed Function: Non-Keyed
- 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
- Also selected when ordering: Backset, Strike, 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 GT177PHL605.
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.
Manufacturer Resources
Product Specs
- Department:
- Door Hardware
- Product Group:
- Mechanical Locks
- Product Subgroup:
- Bored Locksets
- Product Type:
- Leverset
- Product Category:
- Mechanical Locks
- Product Model:
- GT177
- Commercial/Residential:
- Commercial
- Series:
- GT Series
- Grade:
- Grade 1
- ANSI/BHMA:
- F77
- Lock Function:
- Patio / Privacy
- Keyed:
- No
- Electronic:
- No
- Door Hand Direction:
- Non-Handed
- Warranty:
- 25-year
- Tags:
- pdq gt177, gt177 pdq, gt177
- Subcategory:
- Cylindrical Locks
- Duty Level:
- Heavy Duty
- Product Attribute:
- Cylindrical Locks
- Lock Type:
- Cylindrical
- Handle Type:
- Lever
- Product Function:
- Patio / Privacy
- Keyed Function:
- Non-Keyed
- Backset (Distance):
- 2-3/4"
- Standard Latch:
- 1/2" Throw
- Standard Strike:
- ASA standard
- Fire Rated:
- Yes
- ADA Compliant:
- Yes