American Standard Durable Hotel Guest Room Mortise Lock-DDAL15

The Hotel Guest Lock is designed with a strict access hierarchy that prioritizes guest privacy and security from the inside while reserving full control for hotel staff on the outside. The latch bolt, which serves as the primary door-closing mechanism, can only be retracted in two ways: by turning a key from the exterior or by operating the inside lever. The outside lever is permanently inoperative under all conditions — it cannot be used to open the door from the guest-room side at any time. This ensures that once a guest locks the door from inside, no one outside can simply press the lever handle to gain entry, even if the door is not dead-bolted. To further secure the room, a dead bolt is provided, which is projected (extended) solely by a thumbturn located on the interior side of the door. This means only the occupant inside the room can engage the dead bolt, giving them complete control over the door's security state without any external intervention.

When the guest wishes to exit, a single action on the inside lever retracts both the latch bolt and the dead bolt simultaneously, allowing the door to be opened freely and quickly from within. This streamlined egress path is essential for hotel environments where guests must be able to leave their rooms without fumbling with multiple locks, especially in emergency situations. The lock also incorporates an auxiliary dead latch, which functions as a secondary locking point independent of both the latch bolt and the dead bolt. This auxiliary latch typically engages automatically when the door closes and can only be withdrawn by the inside lever, adding an extra barrier against forced entry — for instance, preventing the door from being pushed open with a credit card or similar tool even if the main latch bolt is compromised. Together, the permanently disabled outside lever, the inside-only dead bolt, the dual-bolt retraction via a single lever action, and the auxiliary dead latch create a lock system that is simple for guests to use, quick to egress from, and highly resistant to unauthorized outside access.

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D&D Hardware specialized in Stainless Steel hardware products for Wooden Doors& Metal Doors, such as Door Locks, Door Hinge, Lever Handles, Door Closer, Panic Exit Device, Door stopper, Flush Bolt, etc.

The Stainless Steel Euro Door Hinge that we offer are tested to the most stringent international industry standards, including BS EN, CE, UL, ANSI and BHMA, Suitable for Education, Healthcare, Hospitality, Residential and Commercial applications.

More door hardware items include:

1.Door Hinge- UL 10C R38013 & BHMA/ANSI Grade1/2 & CE EN1935 Grade 13

2.Concealed Hinge- BS EN1935, EN1634 Fire Rated & UL Listed, UL 10C Fire Rated

3.Door Lock - CE EN12209 UKCA Fire Rated & UL 10C R40901

4. Door Handle- BS EN 1906 Grade 4, EN1634 Fire Rated

5. Panic Exit Device- UL 10C R40486 & UL305 SA45817 & CE EN1125

6. Door Closer – CE BS EN 1154 & UL 10C R40717

7. Lock Cylinder-BS EN1303, EN1634 Fire Rated

8. Glass Hardware / Bathroom Hardware / Barn Door Hardware

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