Corbin Russwin ML2020 Grade 1 Mortise Privacy, Bedroom or Bathroom Lockset

Corbin Russwin ML2020 Mortise Privacy Lockset Bedroom & Bathroom, Grade 1, Field Reversible, 1-3/4" Door

Commercial-Grade Mortise Privacy Lock for Bedroom and Bathroom Applications

The Corbin Russwin ML2020 is a Grade 1 mortise privacy lockset engineered for bedroom and bathroom applications in demanding commercial, institutional, industrial, and government environments. Conforming to ANSI function F02, this lockset allows latchbolt retraction by grip from either side when the deadbolt is retracted, with the deadbolt operated by thumbturn grip from inside or by emergency release tool from outside. Designed for standard 1-3/4" (44mm) door thickness and featuring a field-reversible handing, the ML2020 is part of the ML2000 Series — a heavy-gauge steel mortise lock platform tested to an exceptional 14.5 million cycles. The included ANSI straight lip strike measures 4-7/8" (124mm) x 1-1/4" (32mm) x 1-1/8" (29mm) lip to center, ensuring precise, code-compliant installation.

Professional Features & Benefits

• Door Thickness Compatibility: Designed for standard 1-3/4" (44mm) door thickness, accommodating the most common commercial door preparations.
• ANSI Standard Strike Dimensions: Includes ANSI straight lip strike measuring 4-7/8" (124mm) x 1-1/4" (32mm) x 1-1/8" (29mm) lip to center for precise, reliable installation.
• Exceptional Durability 14.5 Million Cycles: UL cycle testing completed above and beyond standard requirements at 14.5 million cycles (Verification ID: V875753), ensuring long-term reliability in high-traffic applications.
• Patented Quick Reversible Latchbolt: Field-reversible handing allows reversal of hands without disassembling the lock case, reducing installation time and labor costs.
• Heavy-Gauge Steel Construction: Lockbody constructed of heavy-gauge steel with a 1" stainless steel deadbolt, providing a formidable barrier against intrusion and abuse.
• ANSI F02 Privacy Function: Latchbolt operates by grip from either side when deadbolt is retracted; deadbolt set by thumbturn inside or released by emergency tool outside — no simultaneous deadbolt and latch retraction, non-panic release.
• Vandal-Resistant Security Option: Available in ML2000VR (Vandal Resistant) configuration featuring stainless steel escutcheons with tapered edges and Torx® pin tamper-resistant screws for enhanced security.
• Broad Cylinder Compatibility: Compatible with new or existing Corbin Russwin key systems and accepts cylinders from most other manufacturers for flexible integration.
• Manufacturer Warranty: Backed by a 10 Year Limited warranty for added confidence and long-term protection.

Technical Specifications

• Subcategory: Mortise Locks
• Product Group: Mechanical Locks
• Series: ML2000 Series
• Grade: Grade 1
• Keyed Function: Non-Keyed
• Standard Latch: 3/4" Latchbolt
• Standard Strike: ANSI straight lip standard, 4-7/8" x 1-1/4" x 1-1/8"
• Warranty: 10 Year Limited
• ANSI/BHMA: F02
• Product Subgroup: Mortise Locks and Trim
• Product Type: Mortise Locks
• Keyed: No
• Commercial/Residential: Commercial
• Function Description: Latchbolt by grip* either side, when deadbolt is retracted. Deadbolt by thumbturn grip inside or by emergency release tool outside.
• Lock Type: Mortise
• Lock Function: Privacy/Bed/Bath
• Product Attribute: Mortise Locks
• Electronic: No
• Product Model: ML2020
• Collection: ML2000 Series
• Product Function: Privacy/Bed/Bath
• Door Hand Direction: Field Reversible
• Door Thickness Range: 1-3/4"
• Product Category: Mechanical Locks
• Product Substrate: Brass or Bronze
• Department: Door Hardware

Installation & Operation

1. Review manufacturer specifications and verify door preparation requirements including door thickness (1-3/4" standard), stile width, and handing as applicable to this product.
2. Use manufacturer-provided templates to mark mounting hole locations accurately on door and/or frame surfaces.
3. Prepare door and frame by drilling required holes and routing as specified in manufacturer instructions.
4. Install all mounting hardware and secure the mortise lockbody and thru-bolted trim to door and frame per manufacturer torque specifications.
5. If handing reversal is required, utilize the patented Quick Reversible latchbolt feature to reverse hands without disassembling the lock case.
6. Install the ANSI straight lip strike (4-7/8" x 1-1/4" x 1-1/8") on the door frame and adjust for proper latch engagement and smooth operation.
7. Test thumbturn deadbolt operation, latchbolt retraction from both sides, and emergency release tool function. Refer to manufacturer documentation for complete installation details and troubleshooting.

Professional Applications

• Commercial Office Buildings Private Offices and Restrooms
• Educational Facilities Faculty Restrooms and Private Rooms
• Healthcare Institutions Patient Rooms and Staff Restrooms
• Hospitality Hotel Guest Rooms and Bathrooms
• Retail Establishments Employee and Customer Restrooms
• Industrial and Government Facilities Private and Restroom Doors
• Multi-Tenant Residential Properties Common Area Restrooms

Tamper-Resistant Design

The ML2000VR (Vandal Resistant) Series option features stainless steel escutcheons with tapered edges and Torx® pin tamper-resistant screws, providing a vandal-resistant barrier for high-risk environments. When paired with Corbin Russwin patented high-security Pyramid or Access 3® cylinders, any door can become a formidable barrier to intruders.

Why Choose Corbin Russwin Quality?

Corbin Russwin ML2000 Series mortise locks deliver professional-grade reliability with heavy-gauge steel construction and a 1" stainless steel deadbolt, UL cycle tested to an outstanding 14.5 million cycles (Verification ID: V875753) — far exceeding standard requirements. Backed by a 10 Year Limited warranty and available in a wide variety of trim designs and finishes including the Vineyard™ and Muséo® Collections, the ML2020 is engineered for demanding commercial applications where dependable performance, security, and aesthetics are all essential.