Adams Rite MS1861-01-603-IB Bottom Rail Deadlock with 2-1/4" Backset in Zinc plated steel
SKU
MS1861-01-603-IB
Model No
MS1861-01-603-IB
$93.75
Product Highlights
- Zinc plated steel finish
- Cylinder height (Backset): Minimum 2-1/4" with vertical bolt only
- Case is made of steel with corrosion-resistant plating that measures 1" x 6" x 1-13/16"
- Bolts: 3/8" diameter
- The MS1861 Bottom Rail Deadlocks are operable by any standard 1-5/32" diameter mortise cylinder with MS cam

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The MS1861-01-603-IB from Adams Rite is a bottom rail deadlock with a 2-1/4" backset made from durable zinc plated steel. Designed for ultra-narrow stile or tempered glass doors, this deadlock ensures secure bottom rail locking, while minimizing the risk of debris accumulation and snagging. Its tamper-resistant armor faceplate, combined with a user-friendly key operation, delivers both security and convenience. Perfect for commercial applications where aesthetics and functionality are paramount.
Adams Rite MS1861-01-603-IB Bottom Rail Deadlock Features
- Zinc plated steel finish: Provides enhanced durability and corrosion resistance for long-lasting performance.
- Cylinder height (Backset): Minimum 2-1/4" with vertical bolt only, ensuring compatibility with ultra-narrow stiles.
- Corrosion-resistant steel case: Measures 1" x 6" x 1-13/16", offering robust protection and longevity.
- 3/8" diameter bolts: Ensures secure locking mechanism, providing peace of mind against unauthorized access.
- Standard mortise cylinder compatibility: Operates with any standard 1-5/32" diameter mortise cylinder with MS cam for easy integration.
- Vertical bolt operation: Streamlined design simplifies operation while ensuring reliable locking.
Adams Rite MS1861-01-603-IB Detailed Specifications
| Feature | Details |
| Product Type | Bottom Rail Deadlock |
| Material | Zinc Plated Steel |
| Backset Height | 2-1/4" |
| Case Dimensions | 1" x 6" x 1-13/16" |
| Bolt Diameter | 3/8" |
| Cylinder Compatibility | Any standard 1-5/32" diameter mortise cylinder with MS cam |
| Operation Type | Vertical Bolt Only |
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