Schlage B502-999 Lazy Tailpiec...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$20.58
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Schlage B502-999 Lazy Tailpiece for S200 Series 6-Pin Conventional Cylinder, 2.5" Cylinder, 1-3/8" to 2" Doors

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Model: B502-999

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

$20.58
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Schlage B502-999 Lazy Tailpiece for S200 Series 6-Pin Conventional Cylinder, 2.5" Cylinder, 1-3/8" to 2" Doors

The Schlage B502-999 is a replacement lazy tailpiece engineered for use with S200 Series 6-Pin Conventional Cylinders manufactured after February 26, 2008. Designed to accommodate a 2.5" conventional cylinder, this component supports door thicknesses ranging from 1-3/8" to 2", making it a precise and reliable replacement part for compatible Schlage commercial lock installations.

Key Features

  • Door Thickness Compatibility: Designed for doors ranging from 1-3/8" to 2" thick, ensuring a proper fit across a range of standard commercial door applications.
  • Cylinder Length Compatibility: Fits 2.5" conventional cylinders for accurate, manufacturer-specified replacement.
  • S200 Series Specific: Engineered exclusively for use with S200 Series 6-Pin Conventional Cylinders produced after February 26, 2008, ensuring proper mechanical engagement and function.
  • Genuine Schlage Part: An authentic Schlage replacement component, maintaining the integrity and performance of the original lock installation.
  • Commercial-Grade Quality: Manufactured to commercial standards for dependable performance in demanding environments.
  • Cylinder Tailpiece Function: Provides the essential mechanical link between the cylinder and the lock body, enabling reliable key-operated actuation.

Technical Specifications

  • Department: Door Hardware
  • Product Category: Mechanical Locks
  • Product Group: Parts and Accessories
  • Subcategory: Parts and Accessories
  • Product Subgroup: Parts and Accessories
  • Product Type: Cylinder Tailpiece
  • Parts and Accessories Type: Replacement Parts
  • Commercial/Residential: Commercial
  • Product Model: B502-999
  • Features: Schlage Parts

Typical Applications

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

Why Schlage B502?

Schlage replacement parts like the B502-999 lazy tailpiece are manufactured to the same exacting standards as the original components, ensuring full mechanical compatibility with S200 Series 6-Pin Conventional Cylinders. Engineered for commercial applications, this tailpiece delivers the precise fit and reliable operation required to restore and maintain the performance of Schlage lock systems in professional installations.

Manufacturer Resources

Product Specs

Department:
Door Hardware
Product Category:
Mechanical Locks
Product Group:
Parts and Accessories
Subcategory:
Parts and Accessories
Product Subgroup:
Parts and Accessories
Product Type:
Cylinder Tailpiece
Parts and Accessories Type:
Replacement Parts
Commercial/Residential:
Commercial
Product Model:
B502-999
Features:
Schlage Parts

Schlage B502-999 – Frequently Asked Questions

1) Will the Schlage B502-999 tailpiece work with my S200 Series cylinder?
The B502-999 lazy tailpiece is built for S200 Series 6-Pin Conventional Cylinders manufactured after February 26, 2008. That date cutoff matters: earlier S200 cylinders used a different tailpiece arrangement, so check the production date of the cylinder you are servicing before ordering this one.
2) What door thickness does the Schlage B502-999 lazy tailpiece cover?
Doors from 1-3/8 inches up to 2 inches thick. That spans the standard 1-3/4 inch commercial door as well as thinner 1-3/8 inch interior doors and thicker 2 inch openings, so one tailpiece length covers most of a commercial building's doors.
3) Does the B502-999 tailpiece fit a 2.5 inch cylinder?
Yes, that is exactly the pairing it is cut for. The B502-999 is sized for a 2.5 inch conventional cylinder. If your opening uses a different cylinder length, the tailpiece engagement into the lock body will be wrong and you need the length-matched part instead.
4) What does a lazy tailpiece actually do in a Schlage lock?
It is the flat metal bar that links the key cylinder to the lock body, transferring key rotation into retraction of the latch or bolt. A lazy tailpiece has free play built in, so the cylinder can turn a short distance before it picks up the lock mechanism. When a key turns but nothing moves, a worn or wrong-length tailpiece is the usual culprit, not the cylinder.
5) Does the B502-999 come with a cylinder, or is it the tailpiece only?
Tailpiece only. The B502-999 is a single replacement component, so you supply the S200 Series 6-Pin Conventional Cylinder and any mounting screws from the existing lock. Order the cylinder separately if you are building a new installation rather than repairing one.
6) Is the B502-999 a genuine Schlage part or an aftermarket copy?
It is a genuine Schlage replacement component, not a generic tailpiece. For a keying shop or a facility standardizing on Schlage, that matters because the engagement dimensions have to match the S200 cylinder cam exactly for reliable operation.
7) Is this tailpiece rated for commercial door traffic or is it a residential part?
Commercial. The B502-999 is a commercial-grade replacement part used in offices, schools, healthcare, retail, warehouses, multi-tenant residential and government buildings. It is the correct part for a facility standardizing on Schlage S200 cylinders across many openings.
How fast can I get the Schlage B502-999 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 Schlage B502-999 come with a warranty?
Absolutely. The Schlage B502-999 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 Schlage B502-999?
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 Schlage B502-999 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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