Marks USA 22AC Series Entrance...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$191.21
$136.50
Marks USA 22AC Series Entrance Double Cylinder Ornamental Iron Mortise Lock with Round Knob in US26D Satin Chrome finish, right-hand reverse handing, shown with mortise case, faceplate, and double cylinder

Marks USA 22AC Series Entrance Double Cylinder Ornamental Iron Mortise Lock, Round Knob

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Model: 22AC-26D-W-RHR
$191.21
$136.50
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$191.21
$136.50
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Marks USA 22AC Ornamental Iron Storm Door Mortise Lock: Double Cylinder with Round Knob

The Marks USA 22AC is a professional-grade ornamental iron storm door mortise lock engineered for commercial applications requiring dependable security and lasting durability. Designed for 1" door thickness with a Series 9 lock body and a 2-1/2" backset, this double-cylinder mortise lock features a reversible 1" bolt and 1/2" latch projection, and a lock front measuring 1" x 7-1/8". Thru-bolted solid brass trim assemblies, spring-loaded captivated spindles, and a steel hub deliver superior endurance, while the Marks "A" keyway 5-pin cylinder with 2 keys and keyed alike-6 configuration provides reliable access control. Available in Left Hand Reverse (LHR) and Right Hand Reverse (RHR), with field-changeable handing for installation flexibility.

Key Features

  • Door Thickness Compatibility: Engineered specifically for 1" door thickness, making it ideal for ornamental iron storm door applications.
  • Series 9 Lock Body & Backset: Features a Series 9 lock body with a 2-1/2" backset for precise, secure fitment in standard storm door preparations.
  • Reversible Mortise Lock: 1" bolt with 1/2" latch projection; fully reversible design accommodates varied door configurations.
  • Lock Front Dimensions: 1" x 7-1/8" lock front provides a clean, professional fit within the door edge.
  • Thru-Bolted Solid Brass Trim: Solid brass trim assemblies secured with thru-bolts, eliminating threaded swivel spindles for a more robust and reliable connection.
  • Spring-Loaded Captivated Spindles & Steel Hub: Spring-loaded captivated spindles combined with a steel hub deliver greater endurance and smooth, consistent operation over time.
  • Uni-Lock Single-Screw Assembly: Innovative "Uni-Lock" single-screw assembly simplifies installation and reduces the potential for misalignment during setup.
  • Double Cylinder with Marks "A" Keyway: 5-pin cylinder with 2 keys included; keyed alike-6 configuration for convenient master-keying in commercial environments.
  • Field-Reversible Handing: Available in Left Hand Reverse (LHR) and Right Hand Reverse (RHR); handing can be changed in the field, though ordering the correct hand is recommended.

Certifications & Compliance

  • UL Listed
  • ANSI/BHMA Compliant
  • Commercial Grade
  • Lifetime Mechanical Warranty

Technical Specifications

  • Series: 22 Series
  • Features: 1/2" Latch Projection; Spring Loaded Captivated Spindles
  • Product Group: Mechanical Locks
  • Product Subgroup: Mortise Locks
  • Product Type: Mortise Locks
  • Subcategory: Mortise Locks
  • ANSI/BHMA: ANSI/BHMA, UL Listed
  • Commercial/Residential: Commercial
  • Product Attribute: Mortise Locks
  • Electronic: No
  • Door Thickness Range: 1"
  • Product Category: Mechanical Locks
  • Department: Door Hardware

Typical Applications

  • Ornamental Iron Storm Doors in Commercial Buildings
  • Retail Storefronts with Decorative Entry Doors
  • Multi-Tenant Residential Properties with Iron Storm Doors
  • Government and Municipal Buildings
  • Educational Facilities with Ornamental Entry Systems
  • Healthcare Institutions Requiring Secure Storm Door Hardware
  • Industrial and Warehouse Facilities with Iron Door Applications

Why Marks USA 22AC?

Marks USA has been a primary manufacturer of ornamental iron storm door locks for many years, continuously innovating to improve reliability and ease of installation. The 22AC features thru-bolted solid brass trim, a steel hub for greater endurance, and the proprietary "Uni-Lock" single-screw assembly, all backed by a Lifetime Mechanical Warranty and UL Listing for confidence in demanding commercial environments. When dependable performance and professional-grade construction are required for ornamental iron storm door applications, the Marks USA 22AC delivers.

Manufacturer Resources

Marks USA Product Catalog

Product Specs

Series:
22 Series
Features:
1/2" Latch Projection; Spring Loaded Captivated Spindles
Product Group:
Mechanical Locks
Product Subgroup:
Mortise Locks
Product Type:
Mortise Locks
Subcategory:
Mortise Locks
ANSI/BHMA:
ANSI/BHMA, UL Listed
Commercial/Residential:
Commercial
Front Size:
1" x 7-1/8"
Hub Material:
Steel
Product Attribute:
Mortise Locks
Electronic:
No
Door Thickness Range:
1"
Product Category:
Mechanical Locks
Backset (Distance):
2-1/2"
Department:
Door Hardware

Marks USA 22AC-26D-W-RHR – Frequently Asked Questions

1) Do I have to order the Marks 22AC storm door lock in the right hand, or can I flip it on the job?
Handing can be changed in the field, so a lock that shows up wrong hand is not a return. It is sold in Left Hand Reverse and Right Hand Reverse, and the bolt is reversible. Marks still recommends ordering the correct hand, because a field reversal is one more step at the opening and one more chance to leave the case open on a ladder. Storm doors are almost always reverse-bevel openings, which is why both listed options are LHR and RHR rather than plain LH and RH.
2) Is the Marks 22AC keyed on both sides, and can I get a set of storm doors keyed alike?
Double cylinder, so it takes a key from inside and outside, with no thumbturn. Keying is a required choice at order: keyed different, keyed alike, or supplied less core if you are setting your own cylinders. The cylinder is a Marks "A" keyway 5-pin with two keys, and the stock configuration is keyed alike in sixes, which is what you want when a property has a row of iron storm doors that one maintenance key should open.
3) I am replacing a broken lock on an existing iron storm door. What do I need to measure before ordering the Marks 22AC?
Three numbers off the old lock decide it. Door thickness has to be 1 inch. Backset, edge of door to knob centre, has to be 2-1/2 inches. And the face cutout in the door edge has to take a 1 x 7-1/8 inch front. If the existing prep matches those three, the 22AC drops into it; pick the hand as LHR or RHR to match, though the handing is field-changeable if you get it wrong.
4) What is a mortise lock equivalent to the Marks USA 22AC for an ornamental iron storm door with a 2-1/2 inch backset?
Among peer mortise bodies, the Baldwin 6310 entrance/storeroom knob-by-knob lock also uses a 2-1/2 inch backset, and the Baldwin 6301 entrance/apartment knob-by-knob lock does as well. The difference that decides the job is door thickness: the Marks USA 22AC is built for 1 inch doors, while the Baldwin 6310 covers 1-3/8 inch and over and the Baldwin 6301 covers 1-3/4 inch and over. On a thin ornamental iron storm door the 22AC is the one dimensioned for the stile; the Baldwin bodies suit a thicker wood or commercial door with the same backset.
5) What mortise lock should I use instead if the door is a standard 1-3/4 inch commercial door rather than a thin iron storm door?
The Marks USA 22AC is dimensioned for a 1 inch door. On a 1-3/4 inch commercial door, the Cal-Royal NM8050 is a Grade 1 office/entrance mortise lockset with auxiliary deadlatch listed for 1-3/4 inch doors, the Cal-Royal NM8080 is the Grade 1 storeroom version with an interchangeable core option, and the Corbin Russwin ML2003 is a Grade 1 classroom mortise lockset for 1-3/4 inch doors. Pick by function: entrance/office, storeroom, or classroom.
6) Is a Sargent 4874 double cylinder mortise deadbolt the same thing as a Marks USA 22AC double cylinder lock?
No. The Sargent 4874 is a double cylinder mortise deadbolt on a 2-3/4 inch backset - a deadbolt only, with no knob or latch operation. The Marks USA 22AC is a double cylinder entrance mortise lock with round knob trim, a 1 inch bolt and 1/2 inch latch projection, on a 2-1/2 inch backset. If the opening needs a latch that retracts with the knob, the deadbolt is not a substitute, and the two backsets require different door prep.
7) What finishes does the Marks 22AC storm door lock come in, and do all of them come in both hands?
Four finishes: US3 bright brass, US5 antique brass, US10B oil-rubbed dark bronze, and US26D satin chrome. Every one is offered in both Left Hand Reverse and Right Hand Reverse, so you can match an existing run of doors without being forced into a hand you cannot use. US10B and US5 are the usual picks against black or dark ornamental iron; US26D reads closest to aluminum storm frames.
8) Is a storm door mortise lock like the Marks 22AC actually rated for commercial use, or is it residential hardware?
Commercial grade, UL Listed, and ANSI/BHMA compliant. The construction is what carries it: thru-bolted solid brass trim instead of threaded swivel spindles, spring-loaded captivated spindles, and a steel hub. On a storm door that gets pulled hundreds of times a day at a storefront or a multi-tenant lobby, the hub is the part that wears first, and steel is the reason this one survives it.
9) Can I get the Marks 22AC storm door lock with a keypad or card reader?
No, the 22AC is purely mechanical, keyed both sides. If you need credential access on a mortise opening, the electronic options are a different door entirely: the Alarm Lock DL2700CR Trilogy is a weatherproof keypad mortise lock for 1-5/8 to 1-7/8 inch doors, the Dormakaba E-Plex 2066 is a pushbutton keyless mortise lock, and the TownSteel FME-2000 is an RFID Grade 1 mortise lockset for 1-3/4 inch doors. None of them fits a 1 inch iron storm door, so on a storm door the mechanical lock is what you have.
10) I need a lever instead of a round knob on an entrance mortise lock - what are the options?
The Marks USA 22AC is a round knob trim lock. For lever-by-lever entrance trim on a mortise body, the Baldwin 6301LS is an entry/apartment lever by lever lock with a 2-1/2 inch backset for doors 1-3/4 inch and over, and the Baldwin 6310190RRLS is a right hand reverse entry/storeroom lever by lever lock, also 2-1/2 inch backset, for doors 1-3/8 inch and over. Both are sized for thicker doors than the 1 inch door the 22AC serves, so confirm the stile depth before switching to lever trim.
11) Can I get a keypad or credential-operated mortise lock instead of a keyed entrance lock?
The Marks USA 22AC is a mechanical, non-electronic lock keyed on a Marks A keyway 5-pin cylinder. For keypad or credential operation on a mortise prep, the Alarm Lock DL3500CR is a Grade 1 electronic classroom mortise lock with 300 user codes for 1-5/8 to 1-7/8 inch doors, the Schlage CO-100 is a Grade 1 standalone electronic mortise lock with a keypad reader for 1-3/4 inch doors, and the TownSteel FME-2000 is a Grade 1 classroom mortise lockset with RFID for 1-3/4 inch doors. All three are sized for thicker doors than the 1 inch the 22AC fits.
12) Are the Emtek mortise entrance locksets an alternative to the Marks USA 22AC?
They serve a different purpose. The Emtek 3019 Brisbane, 3102 Memphis, 3104 Hamilton and 3106 Manhattan mortise entrance locksets are dummy function - fixed trim with no latch or cylinder operation, used on an inactive leaf. The Marks USA 22AC is a working double cylinder entrance lock with a 1 inch bolt and 1/2 inch latch projection. Use a dummy only where the door does not need to latch.
13) I do not need key control on both sides - what is a simpler non-keyed mortise lock?
The Marks USA 22AC is a double cylinder lock, keyed on both sides. Where the opening only needs latching, the Schlage PM010 is a Grade 1 non-keyed passage latch mortise lock for 1-3/4 inch doors, the Falcon MA101 is a Grade 1 heavy duty mortise passage lock with field reversible operation and a fire rating, and the Hager 3810S is a Grade 1 passage mortise lock with rose on a 2-3/4 inch backset for 1-3/4 to 2-1/2 inch doors. None of these accept a key, so they suit interior or non-secured openings rather than a secured entrance.
14) For a facility standardizing on Grade 1 storeroom mortise locks, how does the Marks USA 22AC fit?
The Marks USA 22AC is an ANSI/BHMA compliant, UL Listed commercial mortise lock in double cylinder entrance configuration for 1 inch doors. For a Grade 1 storeroom standard, the Accentra 8805FL is a Grade 1 storeroom mortise lock in the 8800 Series with an Arcadia lever, and the Cal-Royal NM8080 is a Grade 1 storeroom mortise lockset for 1-3/4 inch doors with an interchangeable core option. The 22AC covers the thin ornamental iron storm door openings that the Grade 1 storeroom bodies do not fit.
15) What makes the Marks 22AC trim hold up better than a typical storm door lock?
The trim is thru-bolted solid brass, which means the two sides clamp through the door rather than relying on a threaded swivel spindle that works loose every time somebody yanks the knob. Spindles are spring-loaded and captivated so the knob does not sag, and the hub is steel. Assembly uses Marks' single-screw "Uni-Lock" method, which keeps the two halves from going in misaligned, the failure that usually shows up as a knob that turns but does not retract.
16) Which mortise locks besides the Marks USA 22AC are field reversible for handing?
The Marks USA 22AC is offered in left hand reverse and right hand reverse with field-changeable handing. Among peers, the BEST 45HCAC heavy duty mortise lock body is a public entrance function with field reversible operation, and the Falcon MA101 is a Grade 1 heavy duty mortise passage lock with field reversible operation. Note the function difference: the 22AC is a keyed double cylinder entrance lock, the 45HCAC is public entrance, and the MA101 does not key at all.
17) Is a Sargent 130KB or 130W mortise thumbturn a substitute for the double cylinder on the Marks USA 22AC?
No. The Sargent 130KB is a standard duty mortise thumbturn in the 8200 Series and the Sargent 130W is a standard duty mortise thumbturn with a round backplate in the 7800 Series - both are trim pieces that turn a bolt from the inside, not complete locks. The Marks USA 22AC is a full mortise lock body with round knob trim and cylinders on both sides. A thumbturn is what you specify when you want key-free egress on the inside of an existing mortise body, not a replacement lock.
How fast can I get the Marks USA 22AC-26D-W-RHR delivered?
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Does the Marks USA 22AC-26D-W-RHR come with a warranty?
Absolutely. The Marks USA 22AC-26D-W-RHR 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 Marks USA 22AC-26D-W-RHR?
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