Adams Rite MS1850S Series Lami...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$82.00
$56.03

Adams Rite MS1850S Series Laminated Stainless Steel Deadlock with 7/8" Backset

(2 reviews) Write a Review

Model: MS1850S-316-628
$82.00
$56.03
Selected Finish is
Selected Handing is

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

$82.00
$56.03
Adding to cart… The item has been added
Free Shipping on orders over $199
We price match and offer bulk discounts! Click Add to Quote. It's quick and easy.
✨
Earn points with this purchase! You can redeem points for giftcards, iPads, XBox's and more. View Rewards
Free Keying on all locks

Adams Rite MS1850S Series Laminated Stainless Steel Deadlock

The Adams Rite MS1850S Series MS® Deadlock delivers maximum security for single-leaf narrow stile aluminum doors. Its eight-ply laminated stainless steel bolt - nearly 3" long - with an alumina-ceramic core provides exceptional resistance to forced entry and hacksaw attacks. Grade 1 commercial rated and cylinder-not-included, this deadlock accepts any standard Adams Rite MS® cam mortise cylinder and is available in four backsets, three faceplate styles, and three anodized finishes.

Key Features

  • Eight-ply laminated stainless steel bolt with alumina-ceramic core
  • Pivoting deadbolt - positive dead-locking action
  • Designed for narrow stile aluminum doors
  • Accepts any standard Adams Rite MS® cam mortise cylinder (sold separately)
  • Faceplate options: Flat, Radius, Radius with Weatherstrip, Bevel, or Without Faceplate
  • Field-reversible handing
  • Grade 1 commercial security rating
  • 5-year manufacturer warranty

Technical Specifications

  • Door Application: Narrow stile aluminum doors
  • Backset Options: 7/8" [22.2 mm], 31/32" [24.6 mm], 1-1/8" [28.6 mm], 1-1/2" [38.1 mm]
  • Faceplate Dimensions: 1" wide x 6" long
  • Cylinder: Standard 1" length, 1-5/32" diameter mortise with MS® cam (not included)
  • Handing: Non-Handed, LH or RHR, RH or LHR (field reversible)
  • Finishes: 313 Dark Bronze Anodized, 335 Black Anodized, 628 Clear Anodized
  • Grade: Grade 1 Commercial
  • Warranty: 5 Year

Installation Notes

  1. Verify door preparation requirements: door thickness, stile width, and backset measurement before ordering.
  2. Use manufacturer-provided templates to mark mounting hole locations on door and frame.
  3. Cut strike slot in metal jamb per Adams Rite catalog specifications.
  4. Install deadlock case and secure faceplate with provided mounting screws.
  5. Install compatible Adams Rite MS® cam mortise cylinder or thumbturn (sold separately).
  6. Test key or thumbturn operation to confirm proper bolt projection, retraction, and positive locking in both positions.

Typical Applications

  • Commercial office buildings
  • Educational facilities
  • Healthcare institutions
  • Government and municipal buildings
  • Multi-tenant residential and mixed-use properties
  • Industrial and warehouse facilities

Product Specs

Product Group:
Sliding Door and Barn Door Hardware
Series:
MS1850S Series
Grade:
Grade 1
Cylinder Included:
No
Warranty:
5 Year
Product Subgroup:
Deadlocks
Subcategory:
Deadlocks
Commercial/Residential:
Commercial
Tags:
ms1850s, ms1850s deadlock
Product Model:
MS1850S
Product Dimension:
1" x 6" x depth
Face Plate:
1"
Door Strike:
Trim plate
Product Category:
Sliding Door and Barn Door Hardware
Backset (Distance):
7/8"
Department:
Door Hardware
Product Type:
Deadlocks

Adams Rite MS1850S-316-628 – Frequently Asked Questions

1) Which backset do I order for an Adams Rite MS1850S deadlock on my aluminum storefront door?
Measure from the face of the stile to the centerline of the cylinder hole, and order the case that matches. The MS1850S comes in four backsets: 7/8 inch (22.2 mm), 31/32 inch (24.6 mm), 1-1/8 inch (28.6 mm), and 1-1/2 inch (38.1 mm). Backset is fixed in the lock case, not adjustable after the fact, so the measurement has to come off the door before the order goes in. Replacing an existing MS deadlock is easier: pull the old case and the backset is stamped into the geometry you already have.
2) Does the Adams Rite MS1850S deadlock come with a cylinder?
No cylinder ships with the MS1850S. It takes a standard 1 inch length, 1-5/32 inch diameter mortise cylinder with an Adams Rite MS cam, and any standard MS cam mortise cylinder fits it. Order that separately, keyed to whatever the rest of the building runs on. Where the opening doesn't need a key on the secure side, a thumbturn with the same MS cam mounts in place of the cylinder.
3) Can I use an MS1850S deadlock on a pair of aluminum doors with no center mullion?
Not on a pair without something to lock into. The MS1850S is a single-leaf deadlock: the bolt throws sideways into a strike slot cut in the metal jamb. Give it a jamb or a mullion and it works. On a mullion-less pair, the active leaf has nothing solid to engage, so this is the wrong device for that opening. For a single storefront leaf in a narrow stile aluminum frame, it's exactly the application it's built for.
4) Will an Adams Rite MS1850S drop into the prep of the MS deadlock already in my door?
Three things have to match: backset, faceplate size, and faceplate profile. The MS1850S faceplate is 1 inch wide by 6 inches long, and the case is offered in 7/8, 31/32, 1-1/8, and 1-1/2 inch backsets, so if the outgoing lock shares those you're into existing prep. Faceplate comes flat, radius, radius with weatherstrip, bevel, or with no faceplate at all if you're keeping the plate that's on the door. The existing MS cam mortise cylinder carries straight over, since the MS1850S accepts any standard Adams Rite MS cam cylinder, and that means the door stays on its current key.
5) Do I need to specify handing on an Adams Rite MS1850S deadlock?
Handing is an order choice on the MS1850S: non-handed, LH or RHR, and RH or LHR. It's also field reversible, so a hand-specific case that shows up on the wrong swing gets flipped on site instead of shipped back. If you're stocking these across a building with mixed swings, the non-handed option keeps one part number on the shelf.
6) Flat, radius, or bevel faceplate on the MS1850S: which one matches my stile?
Match the faceplate to the edge profile of the stile you're cutting into. Flat suits a square-edged stile, radius a rounded edge, and bevel a beveled edge. Radius with weatherstrip is the one to take where the stile edge carries a weatherstrip channel. There is also a no-faceplate version for reusing the plate already on the door. Whichever profile you pick, the plate footprint is 1 inch wide by 6 inches long, so the pocket in the stile edge doesn't change between them.
7) How well does the MS1850S bolt hold up to prying or a hacksaw?
The bolt is eight-ply laminated stainless steel with an alumina-ceramic core, and it runs nearly 3 inches long. The ceramic core is what a saw blade hits. The bolt pivots out rather than sliding straight, which is what gives it positive dead-locking once thrown, and the length puts real engagement into the jamb slot rather than a shallow bite. This is the security-first choice for a glass storefront leaf where the lock is the only thing between the sidewalk and the space.
8) Is the Adams Rite MS1850S rated for a high-traffic commercial or institutional opening?
Grade 1 is the rating on the MS1850S, the highest of the three grades used for door hardware, and it's a commercial-duty product rather than a residential one. That puts it in scope for office buildings, schools, healthcare, government facilities, multi-tenant residential, and warehouse entrances, which is where narrow stile aluminum entry doors mostly live. For a facility standardizing one deadlock across every aluminum entrance, this is the specification-grade option.
9) Can I get an MS1850S deadlock to match the dark bronze storefront doors already in my building?
Three anodized finishes are offered: 313 dark bronze, 335 black, and 628 clear. Dark bronze storefront runs 313, a mill or clear anodized frame line takes 628, and 335 covers black frames. The finish shows on the faceplate at the door edge, since the case itself mortises into the stile, so matching that plate to the existing door line is the whole job of the finish choice.
How fast can I get the Adams Rite MS1850S-316-628 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 MS1850S-316-628 come with a warranty?
Absolutely. The Adams Rite MS1850S-316-628 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 MS1850S-316-628?
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 MS1850S-316-628 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.

Product Reviews

  • 5
    Upgrade for Solid Security

    Posted by Robert on Sep 13th 2023

    The Adams Rite MS1850S Series laminated stainless steel bolt is a robust choice for bolstering security. Its durability and resistance to tampering are impressive. However, do note that the deadlock cylinder is not included, which adds to the overall cost. Nonetheless, it's a reliable investment for peace of mind.

  • 5
    Security Boost Achieved!

    Posted by James on Jul 28th 2023

    Adams Rite MS1850S Deadlocks are awesome! The security they provide is top-notch, and I feel safer in my home. Plus, the smooth operation is a breeze. However, they might be a bit tricky to install for those less DIY-savvy. Once in place, though, they work like a charm. Worth the investment for sure!