BEST 2C Series 6-Pin Cylinder ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$69.00
$62.43
BEST 2C Series 6-Pin Cylinder Core for 8L Mailbox Lock Systems

BEST 2C Series 6-Pin Cylinder Core for 8L Mailbox Lock Systems

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Model: BES-2C6A1605
From the Standard Cores Collection
$69.00
$62.43
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$69.00
$62.43
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BEST 2C Series 6-Pin Cylinder Core for 8L Mailbox Lock Systems

Professional Mailbox Security Core Component

The BEST 2C Series 6-Pin Cylinder Core is specifically engineered for 8L mailbox lock applications, providing professional-grade security for commercial mailbox installations. This specialized core requires long blade keys and is only compatible with high security mortise cylinders, ensuring enhanced protection for sensitive mail delivery systems. Manufactured to BEST’s strict tolerances and high standards of excellence, this core delivers the durability and performance trusted by security professionals for nearly 100 years.

Professional Features & Benefits

  • Specialized 8L Mailbox Compatibility: Designed specifically for 8L mailbox lock systems with precise engineering for secure mail delivery applications.
  • 6-Pin Security Configuration: Enhanced pin tumbler design provides increased security levels compared to standard 5-pin systems.
  • High Security Integration: Requires long blade keys and works exclusively with high security mortise cylinders for maximum protection.
  • Strict Manufacturing Tolerances: Engineered to the same exacting standards as BEST patented systems for consistent quality and reliable operation.
  • Masterkey System Ready: Compatible with BEST Standard masterkey applications for comprehensive access control management.
  • Proven Durability: Nearly 100 years of BEST engineering excellence ensures long-term performance in demanding commercial environments.
  • Continued Manufacturer Support: Active support for new and existing BEST Standard systems provides ongoing service confidence.

Technical Specifications

  • Collection: Standard Cores
  • Commercial/Residential: Commercial
  • Department: Door Hardware
  • Parts and Accessories Type: Replacement Parts
  • Product Attribute: Parts and Accessories
  • Product Category: Mechanical Locks
  • Product Group: Parts and Accessories
  • Product Subgroup: Cylinders
  • Product Type: Cylinders
  • Series: Standard & Premium Cores
  • Subcategory: Parts and Accessories

Installation & Operation

This cylinder core is designed for use with compatible 8L mailbox lock systems. Refer to the parent device installation instructions and manufacturer documentation for proper integration. Ensure compatibility with existing hardware before installation.

Professional Applications

  • Commercial Mailbox Systems
  • Multi-Tenant Residential Mail Centers
  • Corporate Mail Room Security
  • Government Facility Mail Delivery
  • Educational Institution Mail Systems
  • Healthcare Facility Mail Security
  • Industrial Complex Mail Centers

Why Choose BEST Quality?

BEST Standard key systems deliver professional-grade reliability with strict manufacturing tolerances and high standards of excellence proven over nearly 100 years of security innovation. Active manufacturer support for new and existing BEST Standard systems ensures continued service confidence. Engineered for demanding commercial applications where dependable mailbox security and masterkey system integration are essential.

Manufacturer Resources

Premium Cores and Keys

Product Specs

Product Group:
Parts and Accessories
Series:
Standard & Premium Cores
Product Subgroup:
Cylinders
Product Type:
Cylinders
Subcategory:
Parts and Accessories
Commercial/Residential:
Commercial
Collection:
Standard Cores
Parts and Accessories Type:
Replacement Parts
Product Attribute:
Parts and Accessories
Product Category:
Mechanical Locks
Department:
Door Hardware

BEST BES-2C6A1605 – Frequently Asked Questions

1) Will the BEST 2C core work in a standard interchangeable core lock, or only in mailbox hardware?
The 2C 6-pin core is built for 8L mailbox lock applications and works exclusively with high security mortise cylinders. It is not a general-purpose drop-in for ordinary IC knob, lever, or rim housings. If you are coring standard commercial openings, you want a different BEST core.
2) Can I masterkey a bank of mailboxes using these BEST cores?
Yes. The 2C core is built for BEST Standard masterkey systems, so a property manager can run a single master over the mail center while each tenant carries a change key. Pick one keyway across the bank and order all cores combinated to your system.
3) What is the difference between ordering these BEST cores combinated versus uncombinated?
Combinated cores arrive pinned to a key combination you specify, so they go straight into the mailbox doors. Uncombinated cores ship unpinned for a locksmith to key on site from their own system. If you order combinated, supply the keymark and marking number with the order so the cores are cut to your existing system.
4) I need a replacement cylinder for a Schlage or Corbin opening, not a mailbox. Is this the right part?
No. The BEST 2C is a 6-pin core for 8L mailbox lock systems on BEST Standard keying. For other platforms look at the Schlage 20-057 6-pin FSIC rim cylinder with convertible tailpiece cam, the Corbin Russwin 1070 1-1/4 inch 6-pin mortise housing with A01 cloverleaf cam, or the Detex MC65 1-1/8 inch 6-pin mortise cylinder in Schlage C keyway.
5) What is the closest interchangeable core equivalent to the BEST 2C 6-pin core if the hardware is Schlage keyed?
For a Schlage-keyed opening, the comparable part is the Schlage Commercial 20-057-C full size interchangeable core, which is offered in the Schlage C keyway and a 643E aged bronze finish. The BEST 2C 6-pin core is a different animal in one important way: it is built for 8L mailbox lock systems, requires long blade keys, and works only with high security mortise cylinders, and it is offered across 20 BEST keyways from A through TE with a combinated or uncombinated build. If your masterkey system is BEST Standard, stay with the 2C core; if the facility is already keyed to Schlage C, the 20-057-C drops into Schlage FSIC housings.
6) I need a rim cylinder, not a core. What should I order instead of the BEST 2C?
The BEST 2C 6-pin core is a replacement core only and is intended for 8L mailbox lock systems using high security mortise cylinders, so it will not serve a rim device. For rim applications, the Schlage Commercial 20-021 is a 6-pin rim cylinder with a vertical tailpiece cam and two keys, and the 20-022 is the same 6-pin rim cylinder with a horizontal tailpiece cam. The Corbin Russwin 3070 is a 6-pin rim cylinder housing with a 1-7/8 inch tailpiece. Pick the tailpiece orientation and length your exit device calls for.
7) What do I use for a mortise lock body instead of the BEST 2C mailbox core?
The 2C 6-pin core is matched to 8L mailbox lock systems and high security mortise cylinders, so for a standard mortise lock body you want a mortise cylinder rather than this core. The Corbin Russwin 1000 Grade 1 mortise cylinder is 1-1/2 inches long with an A02 straight cam, the Corbin Russwin 1070 Grade 1 housing is 1-1/4 inches, 6-pin, with an A01 cloverleaf cam, and the Corbin Russwin 1080 Grade 1 is a 1-1/2 inch LFIC mortise cylinder, 6-pin, for Schlage L9000 mortise locks with an A01 Schlage L cam. Cam style and length are what decide the fit.
8) Does the BEST 2C core work in a knob or lever lock?
No. The BEST 2C 6-pin core is built for 8L mailbox lock systems and is compatible only with high security mortise cylinders. For key-in-knob and lever cylinders, Kaba Ilco offers the 1539 Series key-in-knob and lever universal cylinder, the 1579 Series knob and lever cylinder for Sargent, and the 1599 key-in-knob replacement cylinder. For a key-in-deadbolt, the Kaba Ilco 1549 Series is the deadbolt cylinder in that family. Falcon also offers the A23161-05 G key-in-lever cylinder in the RU/T series 6-pin G keyway, keyed different with two cut keys.
9) Which BEST keyways can I get this 6-pin mailbox core in?
Twenty BEST Standard keyways are available: A, B, C, D, DD, E, F, G, H, J, K, L, M, N, O, R, TB, TC, TD and TE. Match the keyway to whatever the rest of your BEST Standard system already uses, otherwise the new cores will not accept your existing keys.
10) Is a 6-pin core more secure than a 5-pin for a multi-tenant mail center?
Six pins give more possible combinations than a five-pin chamber, which matters when you are cutting dozens of unique change keys under one master for a tenant mail bank. The 2C core is 6-pin and built to the same tolerances BEST uses on its patented systems.
11) What looks like a substitute for the BEST 2C core but is not?
The Schlage 20-057 6-pin FSIC rim cylinder is easy to mistake for an equivalent because it is also a 6-pin full size interchangeable core product, but it is a rim cylinder with a convertible tailpiece cam supplied with two keys, not a mailbox core. The BEST 2C 6-pin core is keyed to BEST Standard masterkey systems, uses long blade keys, and pairs with high security mortise cylinders in 8L mailbox hardware. Also not substitutes: the Adams Rite 4024 and 4025 cylinder pulls, which are made for the Adams Rite MS1847 deadlock and deadlatch, and the 4026 cylinder pull for the Adams Rite 5017 wood door deadlock.
12) Is there a simpler fixed cylinder option if I do not need an interchangeable core system?
Yes. The BEST 2C 6-pin core is a core for an interchangeable core system and is ordered combinated or uncombinated so a locksmith can pin it into a BEST Standard masterkey plan. If you do not run interchangeable cores, a conventional cylinder is simpler: the Adams Rite 4036 mortise cylinder is a Grade 1 five-pin cylinder for doors 1/2 inch minimum thickness, and the Detex MC65 is a 1-1/8 inch 6-pin mortise cylinder in the Schlage C keyway. Both are fixed cylinders rather than removable cores.
13) I need to match a residential handleset or deadbolt on the same property, not a mailbox. What should I order?
The BEST 2C 6-pin core is a commercial part engineered for 8L mailbox lock systems, so it will not retrofit a handleset. Medeco covers those openings: the 1012040 is a 6-pin lazy motion rim cylinder for Kwikset single cylinder deadbolts, the 1075127 is a 5-pin rim type lazy motion single cylinder for handlesets and deadbolts, the 1065244 is a 5-pin lazy motion rim cylinder with an Emtek tailpiece, and the 1065140 is a 5-pin retrofit cylinder for the Arrow JL interconnected lock and Emtek handleset and deadbolt outside cylinder. Emtek also lists the CY4 cylinder, sold each.
14) What finishes do BEST 2C mailbox cores come in to match existing mailbox hardware?
Eight finishes: 605 bright brass, 606 satin brass, 611 bright bronze, 612 satin bronze, 613 satin bronze oil-rubbed, 625 bright chrome, 626 satin chrome, and 690 statuary dark bronze. For a bank of mailboxes, 626 satin chrome and 606 satin brass are the usual matches to aluminum and brass mail fronts.
15) Is the BEST 2C core rated for commercial use or is it a residential part?
It is a commercial-duty replacement part, used in corporate mail rooms, multi-tenant residential mail centers, government, healthcare, education and industrial mail facilities. BEST continues to support new and existing Standard systems, so cores can be added to a bank years after the original install.
How fast can I get the BEST BES-2C6A1605 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 BES-2C6A1605 come with a warranty?
Absolutely. The BEST BES-2C6A1605 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 BES-2C6A1605?
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 BES-2C6A1605 from ZenSupply?
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