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The Sargent 8255 Office or Entry Mortise Lock delivers dependable Grade 1 security for high-traffic commercial openings where controlled access matters. Supplied as a lockbody only, this unit gives installers flexibility to pair it with the trim and finish that best suits the project. Built around Sargent's rugged 8200 Series mortise platform, the 8255 offers a proven office/entry function and a field-reversible design that adapts to either hand without extra parts. Its heavy-duty steel case, stainless steel components, and precision mechanism make it well suited for offices, institutions, and other demanding environments that require durable, code-compliant locking hardware.
Features
Functional Details
The 8255 office or entry function allows the door to be locked or unlocked by key from the outside, providing convenient day-to-day access management for offices and entrances while maintaining secure control of the opening.
| Manufacturer | Sargent |
| SKU | 8255 |
| Series | 8200 Mortise Lock Series |
| Function | Office or Entry |
| Configuration | Lockbody Only |
| Handing | Field Reversible |
| Grade | ANSI/BHMA Grade 1 |
| ANSI Number | F04 |
| UL Listing Type | UL/cUL Listed for 3-hour fire door |
| Origin | Made in USA |
| BAA Qualified | Yes |
| Unit of Measure | Each |
| Limited Warranty | Yes |
| Backset | 2-3/4" |
| Latchbolt Throw | 3/4" |
| Face Plate | 1-1/4" x 8" |
| Case Depth | 4" |
| Case Height | 6" |
| Case Thickness | Fits 1-3/4" doors standard |
| Door Thickness | 1-3/4" standard (thicker available) |
| Latchbolt Type | Anti-friction stainless steel |
| Auxiliary Latch | Deadlocking |
| Case Material | Steel |
| Cylinder | Accepts standard mortise cylinder |
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