Schlage B502-998 Phillips Flat...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$17.71
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Schlage B502-998 Phillips Flat Head Cross Recess Screw #10-32 x 2-1/4" for S210 Series Upper Cylinder

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Model: B502-998

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

$17.71
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Schlage B502-998 Phillips Flat Head Cross Recess Screw #10-32 x 2-1/4" for S210 Series Upper Cylinder

The Schlage B502-998 is a Phillips flat head cross recess screw sized #10-32 x 2-1/4", engineered specifically for use with the Schlage S210 Series upper cylinder. This commercial-grade installation accessory ensures a precise, secure fit when servicing or installing compatible Schlage cylinder hardware. Designed as a genuine Schlage replacement part, it delivers the exact specifications required to maintain proper cylinder alignment and retention.

Key Features

  • Precise Thread Specification: #10-32 x 2-1/4" sizing ensures proper engagement and torque for secure cylinder retention in S210 Series applications.
  • Phillips Flat Head Cross Recess Design: Flat head profile sits flush with the mounting surface for clean, professional installation results.
  • S210 Series Compatibility: Designed specifically for use with the Schlage S210 Series upper cylinder, ensuring accurate fit without modification.
  • Commercial-Grade Construction: Built to Schlage’s commercial standards for reliable performance in demanding door hardware applications.
  • Genuine Schlage Part: An authentic Schlage replacement component that maintains OEM specifications for integrity of the original hardware assembly.

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: Screw Pack
  • Parts and Accessories Type: Installation Accessories
  • Commercial/Residential: Commercial
  • Product Model: B502-998
  • Features: Schlage Parts

Typical Applications

  • Replacement screw installation during S210 Series cylinder servicing
  • New cylinder installations in commercial office buildings
  • Maintenance and repair of Schlage mechanical lock hardware
  • Educational facility door hardware servicing
  • Healthcare institution lock maintenance programs
  • Government and municipal building hardware upkeep
  • Facilities management parts inventory for Schlage hardware

Why Schlage B502-998?

Schlage replacement parts like the B502-998 are manufactured to exact OEM specifications, ensuring that your S210 Series cylinder hardware maintains its original performance and integrity. Engineered for commercial applications, this genuine Schlage screw component provides the precise fit and reliable retention that professional installers and facility managers depend on.

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:
Screw Pack
Parts and Accessories Type:
Installation Accessories
Commercial/Residential:
Commercial
Product Model:
B502-998
Features:
Schlage Parts

Schlage B502-998 – Frequently Asked Questions

1) What is the Schlage B502-998 screw used for?
The B502-998 is the Phillips flat head cross recess machine screw that retains the upper cylinder on Schlage S210 Series hardware. It is a genuine Schlage replacement part sized #10-32 x 2-1/4 inches, so it holds the cylinder in alignment without shimming or modification.
2) Will a hardware-store #10-32 screw work in place of the Schlage B502-998?
Thread size alone is not the whole story. The B502-998 is cut to #10-32 at a 2-1/4 inch length, and that length is what sets cylinder depth and retention on the S210 Series. A shorter screw will not reach the retainer, a longer one bottoms out, and a non-flat head will not sit flush in the countersink. Match the #10-32 x 2-1/4 flat head cross recess spec or use the genuine part.
3) Can a Corbin Russwin ML2000 screw pack be used in place of the Schlage B502-998 on an S210 cylinder?
No. The Schlage B502-998 is a Phillips flat head cross recess screw sized #10-32 x 2-1/4 inch made specifically for the Schlage S210 Series upper cylinder, so the thread and length are matched to that cylinder's retention. The Corbin Russwin 429F31 screw packet is built for the ML2000 N escutcheon and the Corbin Russwin 433F77 screw pack is built for ML2000 M and P escutcheons - both are mortise lock trim hardware for a different manufacturer's lock body. Use the B502-998 when the cylinder is Schlage S210.
4) Will the flat head sit flush so the trim or faceplate closes over it?
Yes. The cross recess head on the B502-998 is a flat head profile that seats down into the countersink flush with the mounting surface, so nothing proud interferes with trim seating on the S210 assembly.
5) What do I order if I am replacing strike screws rather than cylinder screws?
The Schlage B502-998 secures the upper cylinder on an S210 Series assembly and is not a strike fastener. For strike work on a Corbin Russwin ML2000 mortise lock, the 206F57-8 is a Grade 1 strike combo screw. Match the fastener to the component being serviced - cylinder retention and strike mounting use different screws.
6) Is the B502-998 a commercial-duty part or a residential one?
Commercial. Schlage classes the B502-998 as a commercial door hardware part, which is why it turns up in office, school, healthcare and municipal maintenance stock for S210 Series cylinder work.
7) Does the Schlage B502-998 come as a single screw or a pack?
It is catalogued by Schlage as a screw pack under part number B502-998, ordered as one item covering the S210 Series upper cylinder screw. There is a single orderable configuration, so there are no length or finish choices to specify.
How fast can I get the Schlage B502-998 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 B502-998 come with a warranty?
Absolutely. The Schlage B502-998 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 B502-998?
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 B502-998 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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