Hager 3540 Apollo Privacy Cylindrical Knob Lock with 2-3/4" Backset in Satin Stainless Steel

Hager 3540 Apollo Privacy Cylindrical Knob Lock with 2-3/4" Backset in Satin Stainless Steel

Grade 2 Commercial Privacy Lock Solution

The Hager 3540 Apollo Privacy Cylindrical Knob Lock delivers reliable commercial-grade security with BHMA Grade 2 certification and UL/cUL listing for up to 3-hour fire rating applications. Featuring a standard 2-3/4" backset and accommodating door thickness from 1-3/8" to 1-3/4", this privacy function lock operates with a latchbolt controlled by knob from either side with push-button locking from inside. The wrought brass and stainless steel construction with satin stainless steel finish provides durability for standard duty commercial applications.

Professional Features & Benefits

• Standard Backset Configuration: 2-3/4" (70mm) standard backset with optional 2-3/8" (60mm) configuration for versatile door compatibility.
• Door Thickness Compatibility: Accommodates door thickness from 1-3/8" to 1-3/4" (35mm - 45mm) for standard commercial door applications.
• Heavy-Duty Construction: Wrought brass and stainless steel components provide exceptional durability for commercial applications.
• Independent Torsion Springs: Inside and outside rose liners contain high-strength torsion springs allowing bi-directional lever movement without lever sag.
• ADA Compliant Design: Non-handed lever designs are ADA compliant and easily field reversible for installation flexibility.
• BHMA Grade 2 Certification: Meets BHMA Certified ANSI A156.2, Series 4000, Grade 2 standards for commercial reliability.
• Fire Rating Compliance: UL/cUL Listed for all functions up to 3 hours for "A" label single doors with UL10C Positive Pressure Rating.
• Privacy Function Operation: Push-button locking with emergency release outside, inside knob operation, or door closing unlock capability.
• Latchbolt operated by lever from either side. Outside lever is locked by push button and unlocked by emergency release outside, operating inside lever or closing door.

Technical Specifications

• ANSI/BHMA: F76
• Applications: Standard Duty Commercial;
• Backsets: 2-3/4" (70 mm) standard;
• Certifications: Meets BHMA Certified ANSI A156.2, Series 4000, Grade 2
• Commercial/Residential: Commercial
• Door Strike: 1-1/4" x 4-7/8" ASA Strike
• Door Thickness: 1-3/8" - 1-3/4" (35mm - 45mm)
• Exposed Trim: Wrought Brass or Stainless Steel
• Finishes: US3 and US32D
• Function: Privacy/Bed/Bath
• Functions: Privacy (F76A);
• Grade: Grade 2
• Handle Type: Knob
• Lever Options: Withnell;
• Lock Type: 1/2" (13 mm) throw, stainless steel;
• Options: Additional latchbolts and strikes available.
• Standard Door Prep: Standard door prep - 2-1/8" (54 mm) diameter (cross bore)
• Subcategory: Cylindrical Knob Locks

Installation & Operation

1. Review manufacturer specifications and verify door preparation requirements including door thickness, 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 device to door and frame per manufacturer torque specifications.
5. Adjust operational components for proper alignment, latching, and smooth operation throughout the full range of motion.
6. Test device operation to verify proper function and make final adjustments as needed. 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 Hager Quality?

Hager 3540 cylindrical locks deliver professional-grade reliability with wrought brass and stainless steel construction meeting BHMA Grade 2 certification standards. UL/cUL listed for up to 3-hour fire rating applications with UL10C Positive Pressure Rating for demanding commercial environments. Engineered for standard duty commercial applications where dependable privacy function performance is essential.