Arrow Lock MK33-BD-10B-CS Grade 2 Asylum Function Knob

Arrow MK33-BD-10B-CS Grade 2 Asylum Function Knob offers a robust and reliable locking solution for commercial applications. Designed with a ball knob and finished in an elegant oil-rubbed bronze, this Grade 2 cylindrical lock is ideal for settings where heavy-duty hardware is not essential but accessibility and functionality are key. The MK Series showcases a clean, modern design, making it a preferred choice among architects and contractors. Its non-handed configuration allows for flexible installation on doors ranging from 1-3/8" to 1-3/4" in thickness. The lock chassis is crafted from cold-rolled steel with a zinc dichromate finish for enhanced corrosion resistance, while the brass latch provides a solid 1/2" throw. This model features a conventional cylinder with a Schlage C keyway, allowing for master keying options. It requires a standard 2-1/8" bore and offers various backset options, including 2-3/8" and 2-3/4". The strike is available in brass, bronze, or stainless steel, ensuring compatibility with a range of architectural styles. With a UL Listing for commercial use and a 1-year limited warranty, the Arrow MK33-BD-10B-CS is a dependable choice for enhancing security and accessibility in any institutional setting.

Grade 2 Asylum Function Knob

Grade 2 Asylum Cylindrical Lock, Ball Knob, Conventional Cylinder Schlage C Keyway, Oil-Rubbed Bronze Finish, Non-handed

Arrow MK Series offer the designer, architect and contractor simple solutions to accessibility requirements. Their clean designs, architectural finishes and available functions make them ideal for commercial applications where heavy duty grade one hardware may not be necessary.

The Arrow MK Series has a clear design and is a simple solution to accessibility requirements.

The MK Series is available in several finishes and functions that make them ideal for commercial applications where heavy duty grade one hardware may not be necessary.

• Lock Chassis – Cold rolled steel with zinc dichromate finish for corrosion resistance. Requires standard 2-1/8" (53.97mm) bore through door.
• Backset – 2-3/8" (60.32mm) standard. 2-3/4" (69.85mm), 3-3/4" (95.25mm) and 5" (127mm) available.
• Door Thickness – 1-3/8" (34.92mm) to 1-3/4" (44.45mm). Latch – Brass with 1/2" (12.7mm) throw.
• Latch housing is steel, with zinc dichromate finish for corrosion resistance. 7/8" (22.225mm) bore in edge of door is required.
• Latch Front – Brass, bronze or stainless steel. Standard faceplate for 2-3/8” (60.32.mm) backset measures 2-1/4” (57.15mm) x 1” (25.40mm) with a flat front, for 2-3/4” (69.85mm) backset standard faceplate measures 2-1/4” (57.15mm) x 1-1/8” (28.57mm) with beveled front 1/8” (3.17mm) in 2” (50.8mm). 
• Strike – Brass, bronze or stainless steel. Standard “T” strike measures 2-3/4" (69.85mm) x 1-1/8" (28.57mm). Optional ANSI A115.1 strike measures 4-7/8" (123.82mm) x 1-1/4" (31.75mm). All strikes have a 1-1/4" (31.75mm) lip to center dimension.
• Handing– Reversible.
• Cylinder, Standard – Solid brass 6 pin cylinder with Arrow “A” keyway, keyed to 5 pin for stock. Can be masterkeyed, grandmaster keyed and construction masterkeyed. Conventional cylinders are also available in a variety of competitive manufacturer’s keyways. Supplied with two 5 pin brass keys for stock. Available in Schlage CS keyway and other competitive keyways.

Resources

• MK Series Cut Sheet
• MK Series Dummy Knob Template
• MK Series Grade 2 Cylindrical Knob Locks Cut Sheet
• MK Series Template