Product Description
9857NL-US28-4 Von Duprin 9857 Series with 990NL Night Latch Surface Mount Three Point Latch Device in Anodized Aluminum
The 9857NL-US28-4 is a Von Duprin 9857 Series Surface Three Point Latch exit device in Aluminum (US28/628), sized for 4' doors. Night Latch — outside lever locks and unlocks by key, inside always free for egress. Ships less cylinder — order a mortise cylinder separately to match your existing keyway.
ANSI/BHMA A156.3 Grade 1 certified. Hex key dogging standard. Field reversible handing.
Pro-Tip from Our Locksmiths: Three-point latch devices like the 9857 give you the security of a multipoint lock on an exit device. The rim latch handles the primary latching while top and bottom bolts prevent door warping and forced entry. If the customer needs SCIF-level security on an exit door, this is what you spec.
| Specifications | |
|---|---|
| Part Number | 9857NL-US28-4 |
| Brand | Von Duprin (Allegion) |
| Series | Von Duprin 9857 |
| Function | Night Latch |
| Grade | ANSI/BHMA A156.3 Grade 1 |
| Mount Type | Surface Three Point Latch (three latch points for enhanced security) |
| Finish | Aluminum (US28/628) |
| Door Size | 4 Foot |
| Cylinder | Ships less cylinder |
| Fire Rating | Non Fire Rated |
- Von Duprin 9857 Series touch bar mechanism — Grade 1 architectural-grade panic hardware
- Surface Three Point Latch (three latch points for enhanced security)
- Aluminum finish
- Hex key dogging standard — hold latch retracted during business hours
Ships Same Day — Order before 2PM EST and your Von Duprin product ships the same business day. Lock Depot is an authorized Von Duprin distributor — every product includes the full manufacturer warranty. Need help? Call (877) 365-5625.
Image shown is representative of the product line. Actual finish, trim, and configuration may vary by SKU.
