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PDQ KT137 Double Cylinder Commercial Deadlock
Function Information:
- Lock or unlock by key from both sides
- ANSI E1141
The PDQ KT137 is an ultra-secure Double Cylinder Deadlock engineered for high-risk commercial environments where unauthorized exit or entry must be strictly controlled. Designed for maximum physical resistance, this heavy-duty deadlock provides a secondary layer of protection for storefronts with glass inserts, warehouse gates, and high-security partitions.
The KT Series is built with a reinforced zinc diecast rose and a wrought brass scalp, offering an institutional-grade solution that fits standard 161 door preparations. The US26D Satin Chrome finish provides a professional, architectural look that resists the wear and tear of high-traffic commercial use.
ANSI E1141 Function Summary: Double Sided Keyed Security
The ANSI E1141 (Double Cylinder) function is designed for maximum perimeter security, requiring a key for operation from both the interior and exterior.
- Exterior Operation: The deadbolt is thrown or retracted by a key from the outside.
- Interior Operation: The deadbolt is thrown or retracted by a key from the inside.
- Security Logic: This function is specifically intended for doors with glass lites or adjacent windows. By requiring a key on the inside, it prevents an intruder from breaking the glass and reaching in to manually turn a thumbturn to unlock the door.
- Safety Note: Due to life-safety codes, Double Cylinder Deadlocks should only be used on rooms with more than one exit or in specific high-security applications where occupants are not at risk of being locked inside during an emergency.
Technical Specifications
| Feature | Details |
| Model | PDQ KT137 |
| Function | Double Cylinder (ANSI E1141) |
| Deadbolt Throw | 1" (Brass Bolt with Case-Hardened Steel Roll Pins) |
| Backset | 2-3/4" Standard (2-3/8" available separately) |
| Door Thickness | 1-3/8" to 1-3/4" |
| Cylinder | 6-Pin Brass (Keyed to 5-Pins) |
| Keyway | SCC (Schlage C Compatible) Standard |
| Strike Size | 2-3/4" x 1-1/8" |
| Faceplate | 2-1/4" x 1-1/8" Square Corner |
| Warranty | 1-Year Limited Warranty |
Solutions for High-Risk Commercial Security
The PDQ KT Series deadbolt is precision-engineered to address the most common physical security vulnerabilities:
- Saw-Resistant Deadbolt: The 1" throw brass bolt contains two concealed 1/4" case-hardened steel roll pins. If an intruder attempts to saw through the deadbolt, these pins spin freely, frustrating the attack and keeping the door locked.
- Vandal-Resistant Housing: Reinforced zinc diecast roses provide a high-strength anchor for the lock cylinders, protecting the internal mechanism against prying and wrenching attempts.
- Versatile Retrofit Design: Engineered to fit both 1-7/8" and 2-1/8" bores, the KT137 is a "drop-in" solution for standard commercial door preps, making it an ideal choice for facility-wide security upgrades.
- Custom Keying Compatibility: While supplied with the industry-standard Schlage C (SCC) keyway, the KT Series can be ordered in keyways from most major manufacturers, allowing you to integrate these high-security deadbolts into your existing master key system.
- Buy American Act Compliance: Assembled in the USA, this hardware meets the strict domestic sourcing requirements for federal, municipal, and military contracts.
Order Lead Time: The US26D Satin Chrome finish is a standard stock item for fast shipping. For premium architectural finishes (US3, US4, US10B, US26), please allow a 3-5 day lead time plus shipping.
| Finish with BHMA code | 626 - US26D Satin Chrome or 613 - US10B Oil Rubbed Bronze or 605 - US3 Polish Brass or 606 - US4 Satin Brass or 625 - US26 Polish Chrome |
| Brand | PDQ |
| Standard Cylinders and Keyways | Schlage C Keyway |
| Series | PDQ - KT Series |
| Deadlock Grade | Grade 1 - Hv Dty |
| Deadbolt Function | Double Cylinder |
| Cylinder Options | Double Cylinder |
| Backset | 2-3/4" Backset |
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