Adams Rite MS1850S Straight Bolt Mortise Deadlock with Flat Faceplate and 1-1/8" Backset

Adams Rite MS1850S Straight Bolt Mortise Deadlock with Flat Faceplate and 1-1/8" Backset

Maximum Security Deadlock Solution for Commercial Applications

The Adams Rite MS1850S straight bolt mortise deadlock delivers maximum security performance with a flat faceplate design and precision 1-1/8" backset configuration. This commercial-grade deadlock features a robust 1-13/32" throw for enhanced security engagement and is engineered for demanding applications requiring reliable after-hour security and convenient traffic control during business hours.

Professional Features & Benefits

• Pivoting deadbolt — positive dead-locking action
• For narrow stile aluminum doors
• Accepts any standard Adams Rite MS® cam mortise cylinder
• Backset: 1-1/8" or 1-1/2"
• Stainless steel or solid brass deadbolt
• Adaptable faceplate for flat, radius, or beveled door edge
• Field-reversible

Technical Specifications

• Door Application: Narrow stile aluminum doors
• Backset: 1-1/8" [28.6 mm] or 1-1/2" [38.1 mm]
• Cylinder: Standard 1" length, 1-5/32" diameter mortise with MS® cam
• Handing: Field reversible
• Faceplate: Flat, radius, or beveled adaptable
• Finishes: US3 (605) Bright Brass, US4 (606) Satin Brass, US10B (613) Dark Bronze, US32 (629) Bright Stainless, US32D (630) Satin Stainless

Installation & Operation

1. Review manufacturer specifications and verify door preparation requirements including door thickness, mortise pocket dimensions, and compatibility with existing hardware.
2. Use manufacturer-provided templates to mark mounting hole locations accurately on door and frame surfaces for proper deadlock alignment.
3. Prepare door mortise pocket to accommodate the deadlock body, ensuring proper depth and clearance for the 1-13/32" throw operation.
4. Install the deadlock assembly into the prepared mortise pocket and secure mounting hardware per manufacturer torque specifications.
5. Adjust bolt alignment and strike plate positioning to ensure smooth operation and proper engagement throughout the full throw range.
6. Test deadlock operation to verify proper function, security engagement, and smooth operation. Refer to manufacturer documentation for complete installation details and troubleshooting.

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 mortise deadlock products deliver professional-grade reliability with heavy-duty construction engineered for demanding commercial applications. The precision 1-1/8" backset and extended 1-13/32" throw provide maximum security performance where dependable protection is essential. Built for consistent operation in high-traffic commercial environments requiring both security and operational convenience.