Adams Rite 4920AN-55-000-628 Heavy Duty Deadlatch (ANSI Size) with Flat Faceplate in Clear Anodized
- Clear Anodized Finish
- LH or RHR - handed operation is easily reversible using only a screwdriver
- Cylinder Backset: 2-3/4"
- Case is made of steel with corrosion-resistant plating that measures 7/8" x 5-13/16" x depth (depth varies by bracket)
- 1-3/4" minimum door thickness required

The 4920AN-55-000-628 from Adams Rite is a Heavy Duty Deadlatch (ANSI Size) with Flat Faceplate in Clear Anodized. The 4920AN-55-000-628 series Deadlatch offers precise traffic control and easy installation for wood or hollow metal doors prepared for hardware according to the specifications of the American National Standards Institute (ANSI). A key-controlled bolt hold-back feature allows a door to free-swing part of the day and exit-only when the bolt is free to latch. This allows a "locked" entrance to be used as an exit by customers or visitors already in the building. For its operation turn key or operate handle to retract spring-loaded latchbolt. To hold bolt retracted, push it in and secure by reverse turn of key. It is easily interchangeable, without stile modification with any MS1850A or MS1850S Deadlock of same backset and faceplate shape. It also replaces 4520 and 4720 ANSI Deadlatches.
Adams Rite 4920AN-55-000-628 Deadlatch Features
- Clear Anodized Finish: Provides a sleek and modern look while ensuring durability against wear and tear.
- Reversible Handing: LH or RHR handed operation is easily reversible using only a screwdriver, allowing versatile installation options.
- Cylinder Backset: 2-3/4" backset allows compatibility with most standard door preparations for easy installation.
- Corrosion-Resistant Steel Case: Made of steel with corrosion-resistant plating measuring 7/8" x 5-13/16" ensuring longevity and performance.
- Minimum Door Thickness: Requires a minimum door thickness of 1-3/4" for secure installation.
- Grade 1 Standard: Built to meet Grade 1 standards for superior quality and reliability.
- Standard Mortise Cylinder Compatibility: Uses any standard 1-5/32" mortise cylinder with MS dimensioned cam for easy integration.
- Armored Flat Faceplate: Measures 1-1/4" x 8" and can be adjusted in the field for right or left beveled edge doors enhancing adjustability.
- Solid Brass Latchbolt: Features a solid brass latchbolt with a 5/8" x 1" x 5/8" throw for reliable security.
- Stainless Steel Auxiliary Latchpin: Prevents unauthorized entry methods like the "old credit card trick" ensuring maximum security.
- Less Strike Included: Offers additional value with a 4506-02 Strike furnished to ANSI preparation specifications for flat jamb.
Detailed Specifications for Adams Rite 4920AN-55-000-628
| Finish | Clear Anodized |
| Handing | LH or RHR (Reversible) |
| Cylinder Backset | 2-3/4" |
| Case Dimensions | 7/8" x 5-13/16" (depth varies by bracket) |
| Minimum Door Thickness | 1-3/4" |
| Standards | Grade 1 |
| Mortise Cylinder | 1-5/32" (standard with MS dimensioned cam) |
| Faceplate Dimensions | 1-1/4" x 8" (adjustable) |
| Latchbolt Material | Solid Brass |
| Auxiliary Latchpin Material | Stainless Steel |
| Strike Included | Yes, 4506-02 Strike furnished |
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