Product Description
Mortise exit devices latch through a mortise lock case set into the edge of the door — the same pocket a mortise lockset uses. The door must be prepped for the mortise case before you order.
The Sargent 12-8974J-LHR-10B is a fire-rated Grade 1 mortise exit device from the Sargent 80 Series (8900 mortise) for 42" openings with Fail Secure function. UL listed for fire-rated openings up to 3 hours.
| SKU Breakdown: 12-8974J-LHR-10B | |
| 12 | Option 12: UL fire label |
| 8974J | Device model: 8974J |
| LHR | Left Hand Reverse |
| 10B | Finish: Oil Rubbed Bronze |
This device is Left Hand Reverse. Exit devices are HANDED and cannot be reversed in the field. Stand outside the door facing it: hinges on the left = Left Hand, hinges on the right = Right Hand. If the door swings toward you, add "Reverse." Verify your handing before ordering.
Fire Rated (12- prefix) — This device is UL listed for fire-rated openings. Do NOT substitute a non-fire-rated device (8- prefix) on a fire-rated opening — your fire marshal will require removal and replacement.
Oil Rubbed Bronze — the 10B finish with a living patina that develops character over time. Popular in boutique hotels, upscale restaurants, and residential-feeling commercial spaces.
Pro-Tip from Our Locksmiths: Exit devices are HANDED — and getting the handing wrong on a $2,000+ device is an expensive mistake. Stand OUTSIDE the door and face it: if the hinges are on the LEFT, it's Left Hand (LH). If the hinges are on the RIGHT, it's Right Hand (RH). For doors that swing toward you, add 'Reverse' — LHR or RHR.
| Handing | Left Hand Reverse |
| Certification | ANSI A156.3, BHMA Grade 1, UL 10C |
| Warranty | 5-Year Limited (mechanical), 2-Year Limited (electromechanical) |
- ANSI/BHMA Grade 1 — highest commercial exit device rating
- 3-hour fire rated — UL 10C listed for positive pressure fire test
- Oil Rubbed Bronze finish
Related Products:
- Browse all Sargent Exit Devices — Rim, mortise, surface vertical rod, and concealed vertical rod
Image shown is representative of this product line. Actual product matches your selected finish and configuration.
Warranty Information
Sargent provides a 5-year limited warranty on mechanical components of exit devices and a 2-year limited warranty on electromechanical components, covering defects in materials and workmanship under normal use and service. Warranty applies to the original purchaser when installed per Sargent specifications.Product Videos
Custom Field
Product Type Exit Device - Mortise Lock
Function Fail Secure
Series 80
Finish Oil Rubbed Bronze
Mount Type Mortise
