Description
Best 9K57AB15DS3626 Grade 1 Entrance Lock
BEST 9K57AB15DS3626 Grade 1 Entrance Lock offers exceptional security and durability, making it a premier choice for both retrofit and new construction projects. This Grade 1 cylindrical lock features a 15 Lever design with a D Rose escutcheon and a sleek satin chrome finish that complements various architectural styles. Engineered for resilience, the 9K lock has been tested to over 4 million cycles, surpassing ANSI standards for Grade 1 locks and ensuring longevity even under heavy use. The lock is designed with low maintenance in mind, featuring lever return springs that prevent sagging and protect internal components from wear, thus reducing overall ownership costs. Installation is straightforward thanks to its pre-assembled hub, significantly minimizing setup time. The BEST interchangeable core allows for easy rekeying, providing flexibility for master key systems. Built from top-quality materials, including solid stainless steel for the latch and corrosion-treated steel for the chassis, the BEST 9K lock is not only reliable but also aesthetically pleasing. Its non-handed design fits doors with thicknesses ranging from 1 3/4″ to 2 1/4″, making it versatile for a variety of applications. Experience peace of mind with the robust security solution that is the BEST 9K57AB15DS3626.
Grade 1 Entrance Lock
Grade 1 Entrance Cylindrical Lock, 15 Lever, D Rose, SFIC Less Core, Satin Chrome Finish, 5″ Backset, Non-handed
The BEST 9K is the toughest cylindrical lock, built to deliver dependable use and superior security in a wide range of applications. What sets the 9K apart is a low-maintenance design that protects critical components from the damage that comes with every day use and abuse. That translates to a lower cost of ownership over time since the BEST 9K lock requires significantly less maintenance and lasts longer overall. With proven Grade 1 security, easy core interchangeability and a broad array of styles and finishes, the BEST 9K fits exactly where you need it.
The BEST 9K Series is ideal for retrofit and new construction alike.
BEST’s 9K series cylindrical lock combines top-quality materials and exceptional craftsmanship into a tough, dependable, long-lasting security solution. The 9K is easy to install, durable, and secure. BEST’s range of available finishes and styles ensures that the 9K delivers aesthetics to match a variety of applications.
Features:
- Durable. Tested to over 4 million cycles, which exceeds the ANSI standard for Grade 1 cylindrical locks and exceeds Grade 1 abusive locked lever torque.
- Easy to Maintain. Lever return springs provide resistance to lever sag, which ensures that the lever assembly will not need to be reset or replaced once installed. Lever return springs are also protected inside the die-cast hub to minimize any maintenance.
- Easy to Install. Pre-assembled hub design greatly reduces the complexity and time required for installation. Installation can be completed in 5 steps.
- Quick Rekeying. BEST interchangeable core allows for customized masterkeying and quick keying changes.
Specifications:
- Latch: solid stainless steel 9/16″ throw; front 2 1/4″ and 1 1/8″ beveled
- Lever handles: plated zinc alloy
- Trim: brass or bronze
- Strike: ANSI 2 3/4″ standard; ANSI S3 4 7/8″, ANSI S3 7/8″ flat, and 7/8″ flat strike (STK) available
- Chassis: zinc alloy and corrosion-treated steel; 2 1/16” diameter
- Door thickness: available for 1 3/4″ or 2 1/4″ doors; spacers available for 1 3/8″ door
- Door prep: 2 1/8″ diameter cross bore
- Backset: 2 3/4″ standard; 3 2/4″ and 5″ available
Keying:
- 6-pin non-IC brass cylinder
- 6- or 7-pin SFIC option available
- Keyway options: LFIC: SCHRC-Schlage, Non-IC: COR-Corbin-Russwin, MED-Medeco, SAR-Sargent, SCH-Schlage, YAL-Yale
Attributes
Manufacturer surcharge: 7.0%
Ansi: F109
Ansi Function: F109 – Entry/Office
Baa Qualified: Yes
Base Material: Brass, Bronze
Bolt Projection: 9/16″
Bore Hole Diameter: 2-1/8″
Box Depth Fraction: 8-1/8″
Box Height Fraction: 4″
Box Width Fraction: 6-5/8″
Burglar Rated: No
Commercial Residential: Commercial
Country of origin: USA
Cylinder Type: SFIC Prep Less Core
Cylinders Present: Single Cylinder
Door Thickness: 1-3/4″ to 2-1/4″
Finish: 626/US26D
Finish Family: Matte Silver
Fire Rated: 3 Hours {A}
Fire Rating: 3 Hours {A}
Function: AB-Entrance
Function Family: Entrance
Grade: Grade 1
Handing: Non-handed
Installation: Commercial
Latch Bore Diameter: 1″
Lever Knob: Lever
Lever Knob Design Name: 15
Leverknob Design: 15 Lever
Leverknob Design Family: Straight Return Lever
Limited Warranty: 10 Year Warranty
Lock Face Size: 1-1/8″ x 2-1/4″
Manufacturer Function: Entrance
Maximum Door Thickness: 2-1/4″
Minimum Door Thickness: 1-3/4″
Origin: USA
Pack Height: 4″
Pack Height 2: 8.75″
Pack Length: 8.13″
Pack Length 2: 20.5″
Pack Qty: 1
Pack Volume: 215.31 in³
Pack Volume 2: 2242.19 in³
Pack Width: 6.63″
Pack Width 2: 12.5″
Pins: 6 to 7
Product Height: 4″
Product Length: 8.13″
Product Width: 6.63″
Projection: 2-3/4″
Rose Escutcheon: Rose
Roseescutcheon Design: D Rose
Roseescutcheon Dimensions: 3-1/2″
Screws: Wood/Machine Screws
Series: 9K Series Grade 1 Cylindrical Lever Locks
Ship Weight: 4.3 lbs.
Std Latch Backset Dim: 5″
Std Latch Number: 9K5
Std Latch Type: Deadlatch
Std Strike Height: 4-7/8″
Std Strike Number: S3
Std Strike Type: ANSI Curved Lip Strike
Std Strike Width: 1-1/4″
Strike Dimensions: 1-1/4″ x 4-7/8″
Subtype: Cylindrical Lock
Type: Locks, Cylinders, Cores, Keyblanks
Ul Listing: BHMA A156.2, Series 4000, Grade 1, UL Listed
Unit of Measure: Each
Unit of Measure 2: Case
Unit of Measure 2 Qty: 9
Resources
- 93K 95K Key in Knob Cylinders Installation instructions
- 9K Cylindrical Adaptations Sell Sheet
- 9K FAQ
- 9K Installation Instructions
- 9K Intruder Series Sell Sheet
- 9K Sell Sheet
- 9K Series Brochure
- 9K Series Grade 1 Cylindrical Lever Locks Cut Sheet
- 9K Service Manual
- 9K/C Function Cam Positioning Installation Instructions
- 9K/G IN Function Cam Positioning Installation Instructions
- 9K/H/HJ Function Key Installation Instructions
- Cylindrical Installation Instructions






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