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Storefront Bolts and Latches
Storefront door locks are the narrow locks built into the stile of aluminum glass doors on shops, offices and building entrances. Shop Adams Rite MS deadlocks such as the MS1850S, deadlatches, flush locks, storefront trims such as the 4560 lever handle and Adams Rite accessories.
How a commercial storefront door lock works
A narrow stile aluminum door has only a few inches of stile, too narrow for a standard bored lock, so storefront locks are made to fit inside the stile. A typical setup has three parts: a lock body in the stile (a deadlock, a deadlatch or a combination), a mortise cylinder on the outside, and a thumbturn, lever, paddle or second cylinder on the inside. All 77 products in this category are Adams Rite, a common brand on aluminum storefronts.
Deadlock, deadlatch or both?
Choose a deadlock when the door is locked and unlocked with a key or thumbturn, and a deadlatch when the door must latch every time it closes.
- MS deadlocks throw a hook-shaped bolt with a key or thumbturn. Models include the MS1850S, MS1851S and MS1852S (flat, radius and bevel faceplates), ANSI-size SN versions, the MS1950 series and the MS1851SW with weatherstrip.
- Deadlatches latch automatically and are opened with a paddle, lever or turn. Models include the 4510, 4511 and 4512 standard duty, the 4900 and 4920AN heavy duty and the 4781 two-point deadlatch with paddle.
- Deadlock/deadlatch combinations such as the MS+1890 Series and MS1847 do both, and the 2190 Dual Force interconnected deadbolt/deadlatch retracts both with one motion.
| Need | Adams Rite products in the catalog | Notes from the listing |
|---|---|---|
| Key-locked aluminum door | MS1850S, MS1851S, MS1852S, MS1950, MS1952 | Flat, radius or bevel faceplate; SN = ANSI size |
| Self-latching door | 4510, 4511, 4512, 4530, 4900, 4920AN | Standard or heavy duty deadlatches |
| Latch and lock in one | MS+1890, MS+1891, MS+1892, MS1847, 2190 Dual Force | Deadlock/deadlatch; 2190 with trim sets |
| Two-point and bottom rail locking | MS1837, 1875, 4781; MS1861, 1830 | Top and bottom or bottom rail bolts |
| Inactive leaf or sliding door | 1870, 1871, 1877, MS1880; 4189, 4190, 4430, 4431 | See flush locks |
| Access control | 4300 Steel Hawk electrified deadlatch; 3090 eForce keyless entry lever | 4300 in 31/32", 1-1/8" and 1-1/2" backsets |
| Trim | 4560 lever, 4565 turn, 4590 and 4591 paddles, 4600 designer handles, 3080 entry trim, 4550 indicator trim, 1000 Series turn trim | Paddles by push or pull and hand |
Faceplates and backset: matching the door stile
Match the faceplate to the edge of the stile and the backset to the stile depth. Adams Rite offers flat, radius and bevel faceplates: radius suits doors with a rounded edge and bevel suits beveled edges. The backset is the distance from the edge to the center of the cylinder; on the 4300 Steel Hawk electrified deadlatch, for example, the catalog lists 31/32", 1-1/8" and 1-1/2" versions. Measure the existing lock or the stile before ordering.
Paddles, levers and turns for deadlatches
A deadlatch needs trim to retract the latch from each side. Paddles (4590, 4591) are push or pull and handed, levers (4560) and turns (4565) suit doors where a paddle does not fit, and the 4600 designer handles come in curve, round and square lever styles. The 4565 turn handle and 4560 lever handle are the most looked-up storefront products in our store.
Cylinders and thumbturns for storefront locks
Adams Rite deadlocks and deadlatches take a mortise cylinder with an Adams Rite cam, and a thumbturn cylinder for the inside where key-free exit is needed. See mortise cylinders and thumbturns. Egress codes generally require that an exit door opens from inside without a key, so check before fitting a double cylinder setup.
Shop by model: MS1850S.
Related categories: MS deadlocks, deadlatches, storefront trims and Adams Rite accessories.
Most requested storefront locks and trims
The storefront products our customers look up most often right now:
- Adams Rite 4565 Deadlatch Turn Handle
- Adams Rite 4560 Deadlatch Lever Handle
- Adams Rite 4190 Flush Lockset with Cylinder
- Adams Rite 4900 Heavy Duty Deadlatch
What to have ready when ordering a storefront lock
- Existing lock model, if any (stamped on the faceplate).
- Deadlock, deadlatch or combination, and how the inside is operated.
- Faceplate (flat, radius, bevel), backset and stile depth.
- Cylinders: outside mortise cylinder and inside thumbturn or cylinder, with keyway.
- Door hand for paddles and handed trims, and finish.
For more on choosing between MS deadlocks, read our MS1850 vs MS1890 buying guide.
Fitting out several storefronts? Request a quote, and schools and agencies can submit a government or school PO. Orders placed before 3:00 p.m. ET on business days ship the same day after card approval, and ground shipping is free on orders of $450+. Call 718-814-6300 with the model on your faceplate.
The tables and selection notes on this page are compiled by National Lock Supply from the Adams Rite catalog and product listings. Last reviewed: November 2026.
Frequently Asked Questions
What is an Adams Rite MS lock?
MS is the Adams Rite name for its narrow stile deadlocks, such as the MS1850S, MS1851S and MS1852S, which throw a hook-shaped bolt into the frame. They fit inside the stile of aluminum doors and take a mortise cylinder with an Adams Rite cam.
Can a storefront door have keyless entry?
Yes. The Adams Rite 3090 eForce keyless entry lever adds a keypad for MS deadlocks or Adams Rite latches, and the 4300 Steel Hawk electrified deadlatch works with access control systems. Power and wiring are needed for the electrified latch.
What does SN mean on an Adams Rite deadlock?
In the listings, SN versions such as the MS1850SN, MS1851SN and MS1852SN are described as ANSI size. They are used where the door is prepared for the ANSI size lock body rather than the standard Adams Rite size. Check the door prep before ordering.
How do I lock both the top and bottom of a storefront door?
Use a two-point lock. Adams Rite lists the MS1837 two-point deadlock, the 1875 two-point deadlock and the 4781 two-point deadlatch with paddle, which lock at more than one point. Bottom rail deadlocks such as the MS1861 and 1830 lock at the bottom rail.