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PDQ MR179 BFEF Privacy with Deadbolt and Egress Function Mortise Lockset - Grade 1
The PDQ MR179 BSN (often ordered as BFEF for the Boston lever on a forged F-Series escutcheon) is a premier Grade 1 Privacy with Deadbolt and Egress Function Mortise Lockset engineered for demanding commercial environments. While typical commercial locks are rated for one million cycles, the PDQ MR Series is tested to over 11 million cycles -- extending the hardware lifespan by 11 times the industry standard. This lockset suits restrooms, private offices, and similar openings that need a privacy deadbolt with guaranteed single-motion egress -- the inside lever retracts both the latchbolt and the deadbolt at once.
Constructed with a heavy-duty 12-gauge cold rolled steel mechanism and a 1-inch throw investment cast stainless steel deadbolt, the MR179 pairs privacy with life-safety egress. The Boston (BSN) lever offers a clean, architectural aesthetic in a US26D Satin Chrome finish. Its "return-to-door" design is not only ADA compliant but also serves as a safety solution by preventing clothing, bags, or straps from snagging on the hardware in busy corridors.
ANSI Function F19: Privacy with Deadbolt and Egress
The Privacy with Deadbolt and Egress function operates the latchbolt from either side, adds a deadbolt thrown by an interior thumbturn with an emergency coin-turn release outside, and lets the inside lever retract both the latchbolt and the deadbolt in a single motion for immediate egress:
- Latchbolt operated by lever from either side.
- Emergency coin turn outside retracts deadbolt.
- Thumbturn inside extends/retracts deadbolt.
- Inside lever simultaneously retracts latchbolt and deadbolt.
Technical Specifications
| Feature | Details |
| Model | PDQ MR179 BSN (F-Series Escutcheon) |
| ANSI Function | F19 (Privacy with Deadbolt and Egress) |
| Performance | 11 Million+ Cycles (11x Grade 1 Standard) |
| Chassis Case | 12-Gauge Cold Rolled Steel (Dichromated) |
| Lever Style | Boston (BSN) - Forged Brass Base |
| Deadbolt | 1" Throw Investment Cast Stainless Steel |
| Privacy Release | Emergency Coin-Turn (Outside) / Interior Thumbturn |
| Egress | Inside lever retracts latchbolt and deadbolt in one motion |
| Latchbolt | 3/4" Throw Stainless Steel, Anti-friction |
| Handing | Field Reversible (Specify for Strike) |
| Certifications | UL10C 3-Hour Fire Rated; HVHZ Hurricane Approved |
| Warranty | Lifetime Limited Warranty |
Engineered Solutions for Commercial Security
The PDQ MR Series addresses the specific technical and safety challenges of modern facilities:
- Single-Motion Egress: A single turn of the inside lever simultaneously retracts the latchbolt and the deadbolt, satisfying life-safety codes that require occupants to exit without separate operations.
- Vandal-Resistant Spindle: The "weakened spindle" design is a critical security solution. If the exterior lever is subjected to extreme torque or a hammer attack, the spindle breaks cleanly to prevent damage to the internal 12-gauge steel case, keeping the lock secure.
- Extreme Weather Durability: Certified for High Velocity Hurricane Zones (HVHZ) with a design load rating of +/- 70.0 PSF, this lockset provides the structural integrity necessary for coastal buildings.
- Anti-Sag Lever Technology: The MR Series utilizes independent, high-tension spring cartridges to ensure the Boston lever remains perfectly level throughout its multi-million cycle life.
- Fire Safety Compliance: With a UL 3-hour fire rating, this lockset ensures that commercial doors remain a reliable fire and smoke barrier, protecting occupants and property.
| Finish with BHMA code | 626 - US26D Satin Chrome or 630 - US32D Satin Stainless or 613E - US10BE Oil Rubbed Bronze Equal or 605 - US3 Polish Brass or 606 - US4 Satin Brass or 612 - US10 Satin Bronze or 622 - US19 Flat Black or 629 - US32 Polish Stainless |
| Brand | PDQ |
| ANSI Mortise Lock Function | F19 - Privacy with Deadbolt and Egress |
| Trim Design | BFEF |
| Series | PDQ - MR Series |
| Strike Type | 4-7/8 ANSI Strike - Hollow Metal Frames |
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