Product Description
9957K-F-US4-4 Von Duprin 9957 Series with 996K Knob Trim Fire Rated Surface Three Point Latch Exit Device in Satin Brass
The 9957K-F-US4-4 is a Von Duprin 9957 Series Surface Three Point Latch exit device in Satin Brass (US4/606), sized for 4' doors. Knob Trim — outside knob for keyed entry. Night latch function. Ships less cylinder — order a mortise cylinder separately to match your existing keyway.
Fire Rated — UL listed for use on fire-rated openings. Mechanical dogging is deleted per UL code on fire-rated models. Field-reversible handing.
Pro-Tip from Our Locksmiths: When servicing a 9957 three-point latch, check all three latch points independently. A misaligned top or bottom bolt can cause the whole device to bind. Adjust strikes one at a time, starting with the rim latch, then top, then bottom.
| Specifications | |
|---|---|
| Part Number | 9957K-F-US4-4 |
| Brand | Von Duprin (Allegion) |
| Series | Von Duprin 9957 |
| Function | Knob Trim |
| Grade | ANSI/BHMA A156.3 Grade 1 |
| Mount Type | Surface Three Point Latch (three latch points for enhanced security) |
| Finish | Satin Brass (US4/606) |
| Door Size | 4 Foot |
| Cylinder | Ships less cylinder |
| Fire Rating | Fire Rated — UL Listed |
- Von Duprin 9957 Series touch bar mechanism — Grade 1 architectural-grade panic hardware
- Surface Three Point Latch (three latch points for enhanced security)
- Satin Brass finish
- Fire rated — UL listed for fire-rated openings, no mechanical dogging
Authorized Von Duprin Dealer — Lock Depot ships all Von Duprin products brand new in factory-sealed packaging with the complete manufacturer warranty. Same day shipping available on most orders. Questions? Contact us for free expert support.
Image shown is representative of the product line. Actual finish, trim, and configuration may vary by SKU.
