Adams Rite S277 10-32 x 3/4 Pa...
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$19.29
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Adams Rite S277 10-32 x 3/4 Pan Head Screw for 4550 Series, Pack of 10

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Model: S277 10R10 603

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

$19.29
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Adams Rite S277 10-32 x 3/4 Pan Head Screw for 4550 Series, Pack of 10

The Adams Rite S277 is a 10-32 x 3/4 pan head screw specifically designed for use with the Adams Rite 4550 Series mechanical locks, sold in a convenient pack of 10. This genuine Adams Rite replacement part ensures proper fit and compatibility, making it an essential installation accessory for commercial door hardware applications. Engineered to the same quality standards as Adams Rite's broader product line, these screws support secure and reliable fastening in demanding commercial environments.

Key Features

  • Thread Specification: 10-32 x 3/4 pan head design provides a precise, secure fit for Adams Rite 4550 Series lock installations.
  • Pack Quantity: Sold in a pack of 10 screws, offering convenient supply for single or multiple installation projects.
  • Genuine Adams Rite Part: Authentic Adams Rite hardware component ensures exact compatibility and consistent performance with 4550 Series mechanical locks.
  • Commercial-Grade Construction: Designed and rated for commercial door hardware applications where reliable fastening is essential.
  • Compatible Series: Specifically engineered for the Adams Rite 4550 Series, eliminating guesswork during installation or service.
  • Installation Accessory: Classified as an installation accessory, ideal for new installations, replacements, or service calls requiring original hardware.

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: S277 10R10
  • Features: Adams Rite Parts

Typical Applications

  • Commercial Office Building Door Lock Installations
  • Retail Storefront Mechanical Lock Servicing
  • Educational Facility Door Hardware Maintenance
  • Healthcare Institution Entry Hardware Repair
  • Industrial and Warehouse Facility Door Hardware
  • Government and Municipal Building Lock Installations
  • Multi-Tenant Commercial Property Hardware Upkeep

Why Adams Rite S277?

Adams Rite parts and accessories are manufactured to meet the precise tolerances required by their commercial-grade mechanical lock systems. The S277 pan head screw is a genuine Adams Rite component, ensuring seamless compatibility with the 4550 Series and delivering the dependable performance that professional installers and facility managers expect. For service, replacement, or new installations, sourcing authentic Adams Rite hardware eliminates compatibility risk and supports long-term reliability.

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:
S277 10R10
Features:
Adams Rite Parts

Adams Rite S277 10R10 603 – Frequently Asked Questions

1) Can I use the Adams Rite S277 screw on a lock other than the 4550 Series?
It is specified for the Adams Rite 4550 Series. Any other lock only works if that lock uses the same 10-32 tapped hole and accepts a 3/4 inch screw length; anything shorter or longer in the hole and you either bottom out or lose thread engagement. For Corbin Russwin ML2000 mortise locks, use the matching Corbin parts instead, such as the 429F31 escutcheon screw packet or the 425F86-8 8-32 x 3/8 inch flat screw.
2) Is the Corbin Russwin 429F31 screw packet a substitute for the Adams Rite S277 screws on a 4550 Series lock?
No. The Adams Rite S277 is a 10-32 x 3/4 pan head screw sold in a pack of 10 and engineered specifically for the Adams Rite 4550 Series mechanical locks. The Corbin Russwin 429F31 is a screw packet made for the ML2000 N escutcheon, so its screws are sized to that mortise lock trim rather than to 4550 Series prep. If you are servicing a 4550 Series lock, order the S277; the 429F31 belongs to an ML2000 job.
3) What is the correct part number to order these Adams Rite 4550 screws?
Order Adams Rite S277, model designation S277 10R10, which is the 10-32 x 3/4 pan head screw supplied ten to a pack in zinc plated 603.
4) What is the difference between buying a screw pack like the Adams Rite S277 and a single screw part number?
The Adams Rite S277 is a screw pack - ten 10-32 x 3/4 pan head screws in one order, which suits a service van or several openings at once. Some comparable fasteners are catalogued as individual screws instead, such as the Corbin Russwin 425F86-8 flat screw at 8-32 x 3/8 inch and the 206F57-8 strike combo screw for the ML2000. If you only need to replace one fastener on an ML2000, an individual screw number covers it; for 4550 Series work in quantity, the S277 pack is the match.
5) My strike plate screws are stripped on a mortise lock - can I use Adams Rite S277 screws?
The S277 is a 10-32 x 3/4 pan head screw matched to the Adams Rite 4550 Series lock body, not a strike fastener. For a Corbin Russwin ML2000 strike, the 206F57-8 is the strike combo screw for that lock. Match the fastener to the component being reattached rather than to thread size alone.
6) What finish are the Adams Rite S277 screws?
Zinc plated, finish code 603. That is a plain utility plating rather than a decorative finish, which is fine for fasteners that sit under a faceplate or trim and out of sight. If a screw head will be exposed on a lever or escutcheon, you want a trim screw matched to the visible finish, not this one.
7) Is a pack of 10 enough for one 4550 Series lock install?
Ten screws covers a single install with spares, and for a locksmith running service calls it is enough for several openings. Property managers standardizing a building on the 4550 Series usually keep a pack on the truck, since these are the screws that go missing during a swap.
8) Do these Adams Rite screws come in a finish that matches exposed trim, or are they concealed fasteners?
The Adams Rite S277 pan head screws are supplied in a 603 zinc plated finish, which is a functional plating rather than a decorative trim finish - they are intended as installation fasteners for commercial 4550 Series lock work. Comparable fastener packs such as the Corbin Russwin 433F77 escutcheon screw pack are likewise sold as service fasteners for a specific lock family.
9) Are these Adams Rite screws rated for commercial door hardware use?
The S277 is catalogued for commercial applications and sold as an installation accessory for Adams Rite mechanical locks, so it is the fastener used in offices, storefronts, schools, and healthcare openings rather than a residential-grade screw.
How fast can I get the Adams Rite S277 10R10 603 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 Adams Rite S277 10R10 603 come with a warranty?
Absolutely. The Adams Rite S277 10R10 603 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 Adams Rite S277 10R10 603?
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 Adams Rite S277 10R10 603 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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