Marks USA 110L Privacy Knob Lockset — Grade 2, Round Knob, Satin Stainless Steel, 3-Hour Fire Rated

Marks USA 110L Privacy Knob Lockset — Grade 2, Round Knob, Satin Stainless Steel, 3-Hour Fire Rated

The Marks USA 110L is a BHMA-certified Grade 2 cylindrical privacy knob lockset engineered for commercial door applications requiring reliable bed/bath privacy function. Featuring a 2-1/4" diameter round knob, a 2-3/8" backset, and compatibility with door thicknesses from 1-5/8" to 1-7/8", this lockset delivers dependable performance in demanding environments. Certified to ANSI/BHMA A156.2 Grade 2 with a 3-Hour Fire Rating and UL Listed, the 110L is finished in Satin Stainless Steel for a professional, long-lasting appearance.

Key Features

• Privacy Function (ANSI F75): Outside knob locked by pushbutton on inside knob/lever; rotating inside knob/lever or closing the door releases the button, with an emergency release in the outside knob/lever for safety.
• Backset & Door Compatibility: Standard 2-3/8" backset accommodates door thicknesses of 1-5/8" to 1-7/8"; optional E4 configuration provides a 2-3/4" backset with 1-1/8" x 2-1/4" face for added flexibility.
• Round Knob Design: 2-1/4" diameter (110 series) round knob provides a classic, ergonomic grip suited for commercial interior doors.
• Latch Assembly: Includes Latch #1138 with a 1" x 2-1/4" front, 1/2" throw, and a stainless steel nose for smooth, durable latching action.
• Steel-Reinforced Roses: Adjustable roses on both sides feature steel reinforcement and a 2-3/4" diameter for added strength and a clean, finished appearance.
• T-Strike Included: Strike #1136, a 2-3/4" "T" Strike (1-1/8" x 2-3/4", 1-1/8" lip, square corner), is included for complete installation readiness.
• Satin Stainless Steel Finish: Corrosion-resistant finish provides lasting durability and a professional aesthetic appropriate for commercial interiors.
• 3-Hour Fire Rating: ANSI/BHMA A156.2 Grade 2 Plus 3-Hour Fire Rating ensures compliance with fire-rated door assembly requirements.

Certifications & Compliance

• ANSI/BHMA A156.2 Grade 2
• 3-Hour Fire Rating
• BHMA Certified
• UL Listed

Technical Specifications

• Product Group: Mechanical Locks
• Product Subgroup: Bored Locksets
• Product Type: Cylindrical Locks
• Subcategory: Cylindrical Locks
• ANSI/BHMA: ANSI/BHMA, UL Listed
• Commercial/Residential: Commercial
• Function Description: Outside knob/lever locked by pushbutton on inside knob/lever. Rotating inside knob/lever or closing door releases/unlocks button. Emergency release in outside knob/lever.
• Series: 110 Series
• Keyed: No
• ANSI Function: F75
• Product Attribute: Cylindrical Locks
• Product Function: Privacy/Bed/Bath
• Strike Classification: T-Strike, 1-1/8" x 2-3/4", 1-1/8" Lip, Square Corner
• Product Category: Mechanical Locks
• Department: Door Hardware

Typical Applications

• Commercial Office Restrooms and Private Offices
• Healthcare Facility Patient Rooms and Restrooms
• Educational Institution Restrooms and Faculty Offices
• Hotel and Hospitality Guest Room Bathrooms
• Multi-Tenant Residential Common Area Restrooms
• Retail Establishment Fitting Rooms and Restrooms
• Government and Municipal Building Restrooms

Why Marks USA 110L?

Marks USA 110L cylindrical locksets are built to commercial-grade standards, certified to ANSI/BHMA A156.2 Grade 2 with a 3-Hour Fire Rating and UL Listing for use in fire-rated door assemblies. Steel-reinforced roses, a stainless steel latch nose, and a durable Satin Stainless Steel finish reflect the robust construction expected in high-traffic commercial environments. For privacy applications where code compliance and long-term reliability are essential, the Marks USA 110L delivers proven performance.