Adams Rite 4920AN Heavy Duty A...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$130.00
$94.98
Adams Rite 4920AN Heavy Duty ANSI Deadlatch with Key-Controlled Bolt Hold-Back

Adams Rite 4920AN Heavy Duty ANSI Deadlatch with Key-Controlled Bolt Hold-Back

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Model: 4920AN-55-000-628
$130.00
$94.98
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$130.00
$94.98
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Adams Rite 4920AN Heavy Duty ANSI Deadlatch with Key-Controlled Bolt Hold-Back

Professional Deadlatch Solution for Commercial Door Applications

The Adams Rite 4920AN Heavy Duty Deadlatch delivers flexible traffic control and easy installation for wood or hollow metal doors with 1-3/4" minimum door thickness. This Grade 1 deadlatch features a key-controlled bolt hold-back mechanism that allows two-way traffic control, enabling locked entrances to function as exits when needed. The solid brass latchbolt provides 5/8" throw with reversible handing, while the auxiliary stainless steel linchpin prevents loiding or case-knife entry.

Professional Features & Benefits

  • Anti-ligature design for behavioral health and psychiatric applications
  • Narrow stile aluminum door application
  • Stainless steel latchbolt
  • No external hardware that can be used as an anchor point
  • Field-reversible handing
  • Compatible with 7100 Series electric strike

Technical Specifications

  • Application: Behavioral health, psychiatric facilities
  • Design: Anti-ligature
  • Door Type: Narrow stile aluminum
  • Latchbolt: Stainless steel
  • Handing: Field reversible

Installation & Operation

  1. Review manufacturer specifications and verify door preparation requirements including 1-3/4" minimum door thickness and ANSI preparation standards for proper fit.
  2. Use manufacturer-provided templates to mark mounting hole locations accurately on door and frame surfaces according to selected backset dimensions.
  3. Prepare door by drilling required holes and routing as specified in manufacturer instructions for the chosen backset configuration.
  4. Install the deadlatch case into the door preparation and secure with provided mounting screws per manufacturer torque specifications.
  5. Install the 1-1/4" x 8" armored faceplate and adjust for right or left beveled edge doors as needed for proper door alignment.
  6. Mount the included 4506-02 strike plate to the door frame according to ANSI preparation specifications for flat jamb applications.
  7. Install mortise cylinder (sold separately) and test bolt operation, hold-back function, and key operation to verify proper installation and smooth operation.

Professional Applications

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

Why Choose Adams Rite Quality?

Adams Rite deadlatch products deliver professional-grade reliability with steel case construction and corrosion-resistant plating rated for heavy-duty commercial applications. The 5 Year Limited warranty provides added confidence in demanding installations. Engineered to ANSI standards with Grade 1 performance rating, this deadlatch ensures dependable operation where security and traffic control flexibility are essential.

Product Specs

Product Group:
Parts and Accessories
Series:
4920 Series
Grade:
Grade 1
Standard Strike:
4506-02 Strike furnished to ANSI
Fasteners:
Mounting Screws
Warranty:
5 Year Limited
Latch Throw:
5/8"
Product Subgroup:
Latches
Subcategory:
Deadlatches
Commercial/Residential:
Commercial
Cylinder and Keyways:
Mortise Cylinder
Duty Level:
Heavy Duty
Product Model:
4920
Door Thickness Range:
1-3/4"
Product Dimension:
7/8" x 5 13/16" x depth
Latch Specification:
5/8" x 1" x 5/8"
Product Category:
Parts and Accessories
Department:
Door Hardware
Product Type:
Deadlatches

Adams Rite 4920AN-55-000-628 – Frequently Asked Questions

1) Will the Adams Rite 4920AN deadlatch fit a 1-3/4 inch aluminum stile door?
1-3/4 inches is exactly what the 4920AN is built for, and it's the only thickness it's rated to. The case measures 7/8" x 5 13/16" x depth, so the stile has to accept that pocket. If your openings are thinner glass-front stiles, this is not the latch for them.
2) What backset do I need to order on the Adams Rite 4920 deadlatch?
Two backsets are made: 1-1/2 inch and 2-3/4 inch. Measure from the stile edge to the centerline of the cylinder hole on the door you're replacing and match it. The 1-1/2 inch is the narrow stile aluminum figure; 2-3/4 inch is the ANSI backset used on wood and hollow metal doors. Get this wrong and the case will not line up with the existing cylinder prep.
3) Will the 4920AN latch into my existing strike, or do I need a new one?
The latchbolt throws 5/8 inch, with a bolt measuring 5/8" x 1" x 5/8". That is a short throw, so the strike lip and pocket have to be set for it. A 4506-02 strike prepped to ANSI is furnished with the latch, and it's the one to use on a flat jamb. You can also order it less strike if your frame already carries an ANSI-prepped strike or a 7100 Series electric strike.
4) Do I have to specify handing on the Adams Rite 4920AN deadlatch?
Handing is an order choice, but the latchbolt is field reversible, so a job with mixed swings does not need two part numbers on the truck. The handing options are Left Hand / Right Hand Reverse and RH or LHR / Left Hand Reverse. Pick whichever matches most of the openings and flip the rest on site.
5) What else do I need to buy to make the 4920AN deadlatch work?
A mortise cylinder, and it's sold separately. The 4920AN is keyed by a mortise cylinder, which is also what drives the key-controlled hold-back. Mounting screws come with the latch, and the 4506-02 strike is included unless you order it less strike. Exterior trim or pull is on you as well.
6) What is the difference between the Adams Rite 4920AN deadlatch and the BEST 6KL deadlocking latch?
They sit at different ANSI performance grades and are keyed differently. The Adams Rite 4920AN is a Grade 1 heavy duty deadlatch with a 5/8 inch latch throw, a 5/8 inch x 1 inch x 5/8 inch latchbolt, and it is operated by a mortise cylinder, with the 4506-02 strike furnished to ANSI. The BEST 6KL is a Grade 2 deadlocking latch of steel construction in the BEST 6K Series. If the door schedule calls out Grade 1 at that opening, the 4920AN meets it; where the spec is written to Grade 2, the 6KL is built for that duty. Confirm which cylinder platform the building is standardized on before choosing, since the 4920AN is prepped for a mortise cylinder.
7) How does key-controlled bolt hold-back work on a deadlatch, and when would I want it?
Turning the key retracts the latchbolt and holds it back, so a locked entrance becomes a free-swinging exit and re-entry point until someone keys it again. That's the tool for a building that unlocks a door for business hours and secures it after, without anyone taping the latch. An auxiliary stainless steel linchpin deadlocks the bolt when the door is closed, so it can't be loided with a case knife.
8) Is the Adams Rite 4920 deadlatch heavy duty enough for a high traffic entrance?
Grade 1, heavy duty, and specified as commercial. That's the top ANSI performance tier, which is the level a school, hospital or retail entrance getting thousands of cycles a day should be on. Steel case with corrosion-resistant plating.
9) Which faceplate option should I order on the 4920 deadlatch, flat or none?
Flat is the one for a flat jamb condition, and it comes as a 1-1/4" x 8" armored faceplate that adjusts for a right or left bevel door edge. Order it without faceplate and strike plate only when you're replacing a latch case into an existing prep and reusing the faceplate and strike already in the door.
10) Is there an Adams Rite deadlatch suitable for a behavioral health unit?
The 4920AN is an anti-ligature design intended for behavioral health and psychiatric applications, with no external hardware that can be used as an anchor point. Between that and the Grade 1 rating, it's the one to specify on a patient-accessible door where traffic still has to be controlled by key.
11) How does the Adams Rite 4920 compare to the BEST 6KL deadlatch?
Different duty tiers. The 4920 is a Grade 1 deadlatch with a key-controlled hold-back for two-way traffic control. The BEST 6KL Series is a Grade 2 deadlocking latch with steel construction, a lighter-duty deadlatch for openings that don't need the key hold-back function or the ANSI Grade 1 cycle life.
12) Can a BEST 6KL latch be used in place of an Adams Rite 4920 deadlatch on a 1-3/4 inch door?
Treat them as separate products rather than a drop-in swap. The Adams Rite 4920 deadlatch is built for 1-3/4 inch door thickness, carries a Grade 1 rating, and comes in 1-1/2 inch and 2-3/4 inch backsets with left hand / right hand reverse and RH or LHR / left hand reverse handing options, so the prep follows the Adams Rite backset and handing you order. The BEST 6KL is a Grade 2 deadlocking latch in the BEST 6K Series and follows its own series prep. Where an existing door is already cut for the 4920, staying with the 4920 keeps the existing mortise, faceplate and 4506 strike prep intact; the 6KL is the choice when the opening is being prepped to the BEST 6K Series instead.
13) What finishes does the Adams Rite 4920AN deadlatch come in?
Three anodized finishes: 313 Dark Bronze, 335 Black, and 628 Clear. Those match the standard anodized aluminum storefront finishes, so the faceplate can be brought in line with the stiles and the rest of the entrance hardware across a building.
How fast can I get the Adams Rite 4920AN-55-000-628 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 4920AN-55-000-628 come with a warranty?
Absolutely. The Adams Rite 4920AN-55-000-628 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 4920AN-55-000-628?
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
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