Adams Rite S262-10R30-603 MS18...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$21.19
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Adams Rite S262-10R30-603 MS1850S Series MS Deadlock Replacement Flat Head Screw for 1-1/8" Backset, Zinc Plated

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Model: S262-10R30-603

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

$21.19
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Adams Rite S262-10R30-603 MS1850S Series MS Deadlock Replacement Flat Head Screw for 1-1/8" Backset, Zinc Plated

The Adams Rite S262-10R30-603 is a genuine OEM replacement screw designed specifically for the MS1850S Series MS Deadlock. Featuring a #10-32 x 1-7/8" flat head thread profile and a 1-1/8" backset specification, this zinc-plated installation accessory ensures a precise, manufacturer-approved fit for commercial door lock applications. Designed for professional installers and facility maintenance teams, this screw pack delivers reliable performance in demanding commercial environments.

Key Features

  • Precise Thread Specification: #10-32 x 1-7/8" flat head screw profile engineered for exact fitment within the MS1850S Series MS Deadlock assembly.
  • 1-1/8" Backset Compatibility: Specifically sized for the 1-1/8" backset configuration, ensuring correct installation depth and secure engagement.
  • Zinc Plated Finish: Zinc plating provides corrosion resistance and lasting durability for long-term service in commercial door hardware applications.
  • OEM Adams Rite Part: Genuine Adams Rite replacement component, maintaining the original design and performance standards of the MS1850S Series Deadlock.
  • Commercial-Grade Application: Engineered for commercial installations where component integrity and dimensional accuracy are critical to lock performance.
  • Installation Accessory: Classified as an installation accessory, this screw pack supports proper assembly and reassembly of MS Deadlock 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: S262-10R30-603
  • Features: Adams Rite Parts

Typical Applications

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

Why Adams Rite MS1850S?

Adams Rite is a trusted name in commercial door hardware, and the S262-10R30-603 screw pack upholds that standard by delivering a genuine OEM component precision-matched to the MS1850S Series MS Deadlock. With an exact #10-32 x 1-7/8" flat head specification and zinc-plated finish, this replacement part ensures proper installation and long-term integrity in demanding commercial applications.

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:
S262-10R30-603
Features:
Adams Rite Parts

Adams Rite S262-10R30-603 – Frequently Asked Questions

1) Can a Corbin Russwin ML2000 screw pack be used in place of the Adams Rite S262-10R30-603 on an MS1850S deadlock?
No. The S262-10R30-603 is a genuine Adams Rite OEM screw made specifically for the MS1850S Series MS Deadlock, with a #10-32 x 1-7/8 inch flat head profile matched to the 1-1/8 inch backset case. The Corbin Russwin screw packs, such as the 429F31 screw packet for the N escutcheon and the 433F77 M and P escutcheon screw pack, are built for the ML2000 mortise lock family and are sized to those escutcheons, not to an Adams Rite narrow stile deadlock case. Use the Adams Rite part when the lock in the door is an MS1850S.
2) Is the S262-10R30-603 a genuine Adams Rite part or an aftermarket screw?
It is a genuine Adams Rite OEM component made for the MS1850S Series MS Deadlock, not a generic fastener. For a maintenance shop standardizing on Adams Rite hardware across a building, that matters: thread pitch and head profile match the original lock assembly exactly.
3) Can I use a hardware store #10-32 machine screw instead of the Adams Rite S262?
A flat head is required here, not a pan or round head. The S262-10R30-603 is #10-32 x 1-7/8 inch with a flat head so it sits flush and does not interfere with the lock case or the stile pocket. A taller head or a different length changes how the deadlock seats, which is what causes bind on the bolt.
4) Is this screw for a mortise lock or for an aluminum storefront deadlock?
It belongs to the Adams Rite MS1850S MS Deadlock, the narrow stile deadlock used in aluminum and glass storefront doors. If you are working on a Corbin Russwin ML2000 mortise lock instead, the fasteners are different parts entirely, such as the 425F86-8 flat screw (8-32 x 3/8 inch) or the 433F77 M and P escutcheon screw pack.
5) I lost the screws reassembling an MS deadlock. Is this the mounting hardware I need?
Yes, if the lock is an MS1850S at the 1-1/8 inch backset. This is the installation accessory Adams Rite supplies for assembly and reassembly of MS Deadlock hardware, sold as a screw pack rather than a complete lock. The lock body, cylinder, and strike are separate items.
6) What is the difference between an Adams Rite MS deadlock screw and a Corbin Russwin flat screw like the 425F86-8?
Thread size and what they fasten. The Adams Rite S262-10R30-603 is a #10-32 x 1-7/8 inch flat head screw, zinc plated, that mounts into the MS1850S Series MS Deadlock at a 1-1/8 inch backset. The Corbin Russwin 425F86-8 is an 8-32 x 3/8 inch flat screw for the ML2000 mortise lock. The coarser diameter and the much longer length on the Adams Rite screw reflect a narrow stile deadlock case rather than a mortise lock trim screw, so the two are not interchangeable in either direction.
7) What is the 603 finish on this Adams Rite screw, and will it hold up in an exterior storefront door?
603 is zinc plated. The plating gives corrosion resistance for commercial door hardware service. The screw sits inside the stile once the deadlock is mounted, so the finish is about durability rather than appearance, and it does not need to match the lock face or trim finish on the door.
8) Do these commercial lock screw packs come plated for corrosion resistance the same way?
The Adams Rite S262-10R30-603 is supplied in a 603 zinc plated finish, which is what gives it corrosion resistance in commercial door hardware service. The Corbin Russwin comparables are identified by function rather than plating - the 429F31 and 433F77 are ML2000 escutcheon screw packs and the 206F57-8 is a strike combo screw - so match the fastener to the lock family first and treat the 603 zinc plating as specific to the Adams Rite part.
How fast can I get the Adams Rite S262-10R30-603 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 S262-10R30-603 come with a warranty?
Absolutely. The Adams Rite S262-10R30-603 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 S262-10R30-603?
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 S262-10R30-603 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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