Adams Rite 4920AN-45-602-335 Heavy Duty Deadlatch (ANSI Size) with Flat Faceplate in Black Anodized
- Black Anodized Finish
- LH or RHR - handed operation is easily reversible using only a screwdriver
- Cylinder Backset: 1-1/2"
- 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-45-602-335 from Adams Rite is a heavy duty deadlatch (ANSI Size) with flat faceplate in black anodized. The 4920AN 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-45-602-335 Features
- Black Anodized Finish: Provides durability and corrosion resistance, ensuring a long-lasting appearance.
- Reversible Handed Operation: LH or RHR - handed operation is easily reversible using only a screwdriver, improving installation flexibility.
- Cylinder Backset: 1-1/2", compatible with most standard door configurations.
- Durable Steel Case: Made of steel with corrosion-resistant plating measuring 7/8" x 5-13/16" (depth varies by bracket) for enhanced security and longevity.
- Minimum Door Thickness: 1-3/4" required, suitable for standard commercial door installations.
- Grade 1 Standard: Meets high durability standards, ideal for heavy-traffic areas.
- Standard Mortise Cylinder Compatibility: Uses any standard 1-5/32" mortise cylinder with MS dimensioned cam for ease of replacement.
- Adjustable Armored Flat Faceplate: Measures 1-1/4" x 8" and can be adjusted in the field for right or left beveled edge doors.
- Solid Brass Latchbolt: With 5/8" x 1" x 5/8" throw for reliable latching.
- Auxiliary Latchpin: Made of all stainless steel, prevents unauthorized entry methods like "the old credit card trick".
- Included 4506 Strike: Ensures compatibility and ease of installation.
- ANSI Prepared 4506-02 Strike: Furnished to meet ANSI preparation specifications for flat jambs, enhancing installation options.
Adams Rite 4920AN-45-602-335 Detailed Specifications
| Feature | Details |
| Finish | Black Anodized |
| Operation | LH or RHR, reversible |
| Cylinder Backset | 1-1/2" |
| Case Material | Steel with corrosion-resistant plating |
| Case Dimensions | 7/8" x 5-13/16" (depth varies) |
| Minimum Door Thickness | 1-3/4" |
| Standard | Grade 1 |
| Mortise Cylinder | 1-5/32" compatible |
| Faceplate Size | 1-1/4" x 8" (adjustable) |
| Latchbolt Material | Solid Brass |
| Latchbolt Throw | 5/8" x 1" x 5/8" |
| Auxiliary Latchpin Material | Stainless Steel |
| Included Strike | 4506 Strike |
| ANSI Prepared Strike | 4506-02 for flat jamb |



