The 1853S-220-IB from Adams Rite is a Deadlock with Short Throw and 31/32″ Backset. This deadlock features a robust laminated stainless steel bolt activated by a pivot mechanism, ensuring maximum security for single leaf narrow stile doors. Its design accommodates various installation conditions, including gaps between the door and jamb. The lock operates with a 360-degree turn of the key or thumb turn, allowing for reliable locking and unlocking while preventing key removal unless the bolt is securely in position.
Adams Rite 1853S-220-IB Deadlock Features
- Cylinder Backset: 31/32″ – Perfectly fits narrow stile doors for enhanced security.
- Durable Case: Made of stainless steel with corrosion-resistant plating, measuring 1″ x 6″ – Ensures longevity and weather resistance.
- Heavy-Duty Bolt: 5/8″ x 1-3/8″ x 2-7/8″ straight bolt made of eight ply laminated stainless steel – Provides superior strength and security.
- Cylinder Compatibility: Requires an MS dimensioned mortise cylinder (cylinder not included) – Allows customization with standard components.
- Operational Flexibility: Compatible with any standard 1-5/32″ diameter mortise cylinder with MS cam – Facilitates easy installation and replacement.
- Grade 1 Strength: Exceeds the highest industry standards for residential and commercial security – Ensures peace of mind.
- Strike Not Included: Gives you the option to select the best strike plate for your installation – Tailors to specific security needs.
Adams Rite 1853S-220-IB Detailed Specifications
| Feature | Details |
| Cylinder Backset | 31/32″ |
| Case Material | Stainless steel with corrosion-resistant plating, 1″ x 6″ |
| Bolt Material | Eight ply laminated stainless steel |
| Bolt Dimensions | 5/8″ x 1-3/8″ x 2-7/8″ |
| Bolt Throw | 1-3/8″ |
| Cylinder Requirement | MS dimensioned mortise cylinder (not included) |
| Compatibility | Standard 1-5/32″ diameter mortise cylinder with MS cam |
| Strength Grade | Grade 1 |
| Strike Plate | Not included |



















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