Product Overview
Best 9K30N-15-D-S3 Grade 1 Passage Cylindrical Lock, 15 Lever, D Rose, Non-Keyed, S3 4-7/8" ANSI Strike
Building on BEST’s legacy of innovation, the 9K series cylindrical lock combines top-quality materials and exceptional craftsmanship into a tough, dependable, long-lasting security solution. The 9K series was designed to be low maintenance, easy to install, durable, and secure.
Passage (N) - ANSI Function F75
- Pre-assembled heavy-duty chassis - Out of the box and onto the door, the 9K offers quick and easy installation.
- Cast construction lock hub - Protects the lock’s critical components from everyday use and abuse.
- Hardened steel through-bolt studs - Deliver maximum lever torque resistance that stands up to the hardiest hands.
- Proven quality - Tested to exceed 10 times the BHMA Grade 1 criteria by UL.

| Brand | |
|---|---|
| Finishes |
626 Satin Chrome, 605 Bright Brass, 606 Satin Brass, 622 Matte Black, 612 Satin Bronze, 613 Oil Rubbed Bronze, 625 Bright Chrome |
| Lock Function |
Passage |
| Lever Design |
15 Lever (Contour Angle, Return) |
| Rose |
D – 3 1/2” Convex |
| Usage |
Heavy Duty |
| ANSI/BHMA Standard |
Listed by BHMA for A156.2, Series 4000, Grade 1 |
| Fire-Rating |
Listed by Underwriters Laboratories for use on 3 Hr, A label for single or double swinging doors |
| ADA Compliance |
Meets ADA requirements - A117.1 Accessibility Code |
| Backset |
2-3/4" |
| Latch |
1/2" throw - 1-1/8" x 2-1/4" face |
| Strike |
S3: Conforms to ANSI A115.2 for 1 3/4” doors (4 7/8” x 1 1/4” with curved lip). |
| Handing |
Non-Handed |
| Door Thickness |
1-3/4" to 2-1/4" |
| Warranty |
3 Year |
| Buy American Act Compliance |
Meets Buy American Act - Made in USA |
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