BEST 9K Series Grade 1 Cylindr...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$1,077.00
$686.32
BEST BEST 9K Storeroom (D) Lock - Grade 1 Cylindrical Keyed Lever Lock BES-9K-D-KEYED

BEST 9K Series Grade 1 Cylindrical Storeroom Lock with D Rose Configuration

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Model: 9K37D16DSTK626AM
$1,077.00
$686.32
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Selected Backset is
Selected Lever Style is
Selected Strike is
Selected Rose Style is

In Stock (leaves warehouse same day if ordered before 3pm ET)

$1,077.00
$686.32
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BEST 9K Series Grade 1 Cylindrical Storeroom Lock with D Rose Configuration

Premium Commercial-Grade Security Solution

The BEST 9K Series cylindrical lock delivers professional-grade security with Grade 1 BHMA certification and heavy-duty construction. This storeroom function lock features a 2-3/4" backset, 9/16" latch throw, and D rose configuration (3-1/2" convex) for demanding commercial applications. Built with corrosion-treated steel chassis and brass components, the 9K series combines exceptional craftsmanship with innovative design features for maximum attack resistance and long-term reliability.

Professional Features & Benefits

  • Grade 1 BHMA Certification: Listed by BHMA for A156.2, Series 4000, Grade 1 providing the highest level of commercial security performance.
  • Heavy-Duty Construction: Corrosion-treated steel chassis with brass latch and critical components for exceptional durability in high-traffic applications.
  • Rose Configuration: 3-1/2" convex D rose with locking pin design offers superior torque resistance and prevents pin twisting or breaking under attack.
  • Attack-Resistant Design: Slotted key release cam and locking lug assembly create maximum resistance while maintaining key access even when damaged.
  • Through-Bolt Mounting: Strong mounting studs with 5/16" diameter holes at 12 and 6 o'clock positions increase torque resistance and security.
  • Interchangeable Core Ready: Allows for quick re-keying and customized master keying for flexible access control management.
  • Lost Motion Feature Available: Optional 45° lever rotation in either direction without engaging retractor assembly for specialized applications.
  • 10 Year Manufacturer Warranty: Comprehensive warranty coverage for added confidence and protection in commercial installations.

Technical Specifications

  • ANSI/BHMA: F86
  • Backset (Distance): 2-3/4"
  • Commercial/Residential: Commercial
  • Department: Door Hardware
  • Door Hand Direction: Non-Handed
  • Duty Level: Heavy Duty
  • Electronic: No
  • Function Description: Latch operated by: Turning the key in the outside lever/ rotating the inside lever. Outside lever is always fixed and cannot be unlocked. Inside lever cannot be locked and it is always unlocked.
  • Grade: Grade 1
  • Handle Type: Lever
  • Keyed: Yes
  • Keyed Function: Single Cylinder
  • Lock Function: Storeroom
  • Lock Type: Cylindrical
  • PDF:9K Series Catalog: https://zensupply.com/content/pdf/best/BA-0003_BEST_9K-Catalog-03-24.pdf
  • PDF:Service Manual for 9K Series: https://zensupply.com/content/pdf/best/4418941408539
  • Product Attribute: Cylindrical Locks
  • Product Category: Mechanical Locks
  • Product Function: Storeroom
  • Product Group: Mechanical Locks
  • Product Model: D
  • Product Subgroup: Bored Locksets
  • Product Substrate: Corrosion-Treated Steel
  • Product Type: Leversets
  • Series: 9K Series
  • Standard Latch: 9/16" Throw
  • Standard Strike: 2-3/4 x 1-1/8" with curved lip and box
  • Subcategory: Cylindrical Locks
  • Tags: 9k37d15ds3626
  • Warranty: 10 Year

Installation & Operation

  1. Review manufacturer specifications and verify door preparation requirements including door thickness (1-3/4" to 2-1/4" standard), backset distance, and handing as applicable to this product.
  2. Use manufacturer-provided templates to mark mounting hole locations accurately on door and frame surfaces, including standard ANSI A115.2 preparation plus two additional 5/16" diameter through-bolt holes at 12 and 6 o'clock positions.
  3. Prepare door and frame by drilling required holes and routing as specified in manufacturer instructions.
  4. Install all mounting hardware including through-bolts and secure the device to door and frame per manufacturer torque specifications.
  5. Adjust operational components for proper alignment, latching, and smooth operation throughout the full range of motion.
  6. Test device operation to verify proper function and make final adjustments as needed. Refer to manufacturer documentation for complete installation details and troubleshooting.

Professional Applications

  • Commercial Office Buildings
  • Educational Facilities
  • Healthcare Institutions
  • Retail Establishments
  • Industrial and Warehouse Facilities
  • Multi-Tenant Residential Properties
  • Government and Municipal Buildings

Why Choose BEST Quality?

BEST 9K Series cylindrical locks deliver professional-grade reliability with corrosion-treated steel construction and brass components rated for heavy-duty commercial applications. The innovative attack-resistant design features and Grade 1 BHMA certification ensure dependable performance in demanding security environments. Backed by a comprehensive 10 year warranty, the 9K series is engineered for commercial applications where superior security and long-term durability are essential.

Product Specs

Series:
9K Series
Subcategory:
Cylindrical Locks
Grade:
Grade 1
Duty Level:
Heavy Duty
Handle Type:
Lever
Keyed Function:
Single Cylinder
Warranty:
10 Year
Standard Latch:
9/16" Throw
Standard Strike:
2-3/4 x 1-1/8" with curved lip and box
ANSI/BHMA:
F86
Product Group:
Mechanical Locks
Product Subgroup:
Bored Locksets
Product Type:
Leversets
Keyed:
Yes
Electronic:
No
Commercial/Residential:
Commercial
Function Description:
Latch operated by: Turning the key in the outside lever/ rotating the inside lever. Outside lever is always fixed and cannot be unlocked. Inside lever cannot be locked and it is always unlocked.
Lock Type:
Cylindrical
Lock Function:
Storeroom
Product Attribute:
Cylindrical Locks
Tags:
9k37d15ds3626
Product Model:
D
Product Function:
Storeroom
Door Hand Direction:
Non-Handed
Product Category:
Mechanical Locks
Product Substrate:
Corrosion-Treated Steel
Backset (Distance):
2-3/4"
Department:
Door Hardware

BEST 9K37D16DSTK626AM – Frequently Asked Questions

1) What is a storeroom function lever lock and how does it work?
A storeroom function lock keeps the outside lever locked at all times. Entry requires a key from the outside. The inside lever always operates freely for egress. This function is ideal for storage areas, utility rooms, and spaces requiring controlled access.
2) What door types and thicknesses work with this cylindrical lever lock?
This lock fits standard 1-3/8" to 1-3/4" thick doors. Compatible with wood, metal, and composite doors. Door must have 2-1/8" bore hole and 1" edge bore. Verify door weight capacity and manufacturer specifications before installation.
3) How do I determine the correct handing for this lever lock?
Stand on the side where the door opens toward you. If hinges are on the right, it's right-handed. If hinges are on the left, it's left-handed. Most cylindrical locks are reversible and can be configured during installation.
4) What finishes are typically available for commercial lever locks?
Common finishes include satin chrome, bright chrome, satin stainless steel, and oil-rubbed bronze. Some models offer painted finishes. Verify specific finish availability with product specifications as options vary by manufacturer and model.
5) What does Grade 1 certification mean for commercial door locks?
Grade 1 is the highest ANSI/BHMA standard for commercial locks. It requires 800,000 cycle testing, higher torque resistance, and superior security features. Grade 1 locks meet heavy-duty commercial applications and high-traffic areas.
6) Can this lock be keyed to match existing building keys?
Yes, most commercial cylindrical locks can be keyed alike or keyed different. Master keying systems are also possible. Consult with a locksmith or key management professional to coordinate with existing building key systems.
7) What replacement parts are commonly needed for cylindrical lever locks?
Common replacement parts include lever handles, lock cylinders, latch assemblies, and strike plates. Springs, screws, and internal mechanism components may also need replacement over time. Keep model numbers for accurate parts identification.
8) What are the basic installation requirements for this type of lock?
Installation requires 2-1/8" hole saw for face bore and 1" spade bit for edge bore. Standard backset is typically 2-3/4". Door frame must be prepared for strike plate. Follow manufacturer template for precise measurements and alignment.
9) How do I maintain and adjust cylindrical lever locks?
Regular cleaning with mild soap prevents dirt buildup. Lubricate moving parts with graphite or appropriate lock lubricant annually. Check lever tightness and strike plate alignment periodically. Avoid over-tightening screws which can bind internal mechanisms.
10) What other lock functions work similarly to storeroom locks?
Office function locks operate similarly but can be unlocked from outside when key is used. Classroom function locks allow outside lever to be locked or unlocked. Entry function locks provide both keyed entry and inside locking capability.
11) How do environmental conditions affect lock performance?
Exterior applications require weatherproof ratings and corrosion-resistant finishes. High-humidity areas may need stainless steel components. Temperature extremes can affect lubricants and metal expansion. Choose appropriate grade and finish for specific environmental conditions.
12) What measurements should I verify before ordering a replacement lock?
Measure door thickness, backset distance from door edge to center of bore hole, and existing hole sizes. Note current lever style and finish. Check if lock is handed or reversible. Verify strike plate dimensions and door frame preparation.
How fast can I get the BEST 9K37D16DSTK626AM delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the BEST 9K37D16DSTK626AM come with a warranty?
Absolutely. The BEST 9K37D16DSTK626AM is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the BEST 9K37D16DSTK626AM?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the BEST 9K37D16DSTK626AM from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support, and rewards on every order. Our team is always ready to help you choose the right product for your project.

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