Richelieu 4040TFB10 Ball Knobs - Maxwell Series offer a blend of durability and style, perfect for both residential and commercial applications. Crafted from galvanized all-steel, the interior mechanism ensures a long-lasting performance, backed by a 25-year mechanical warranty. These passage knobs are designed to fit standard 2-1/8" (55 mm) cross bore door preparations, adhering to ANSI 115.2 specifications for easy installation. The flat black finish adds a contemporary touch, making it suitable for various design aesthetics. With a diameter of 2-9/16 inches and a projection of 2-1/2 inches, these knobs provide a comfortable grip while maintaining a sleek profile. The 4-way removable latch plate enhances versatility, accommodating backsets of 2-3/8 to 2-3/4 inches. Additionally, the knobs are reversible for left or right handing, ensuring compatibility with your door setup. Designed for doors with a thickness ranging from 1-3/8 to 1-3/4 inches, the Richelieu 4040TFB10 Ball Knobs are not only functional but also offer the possibility for keyed alike configurations. Installation is hassle-free, with all necessary screws and templates included. Elevate your space with these stylish and reliable ball knobs from Richelieu.
Ball Knobs - Maxwell Series
Backset: 2 3/8 to 2 3/4 in
Brand: Onward
Color/ Finish: Flat Black
Diameter: 2 9/16 in
Door Thickness: 1 3/8 to 1 3/4 in
Fire- Rating: Available upon request. Fall 2025
Function: Passage
Grade: 3
Handing Position / Opening Side: Reversible for Left or Right
Keyed Alike: Compatible
Latch: 4-Way Latch (Removable Latch Plate)
Material: Steel
Product #: 4040TFB10
Projection: 2 1/2 in
Screw: Included
Screw/ Nail: Included
Standards and Certifications: ANSI A156.2-2003
Style: Ball Knobs
Usage: Hinge Door
