Arrow Lock MK33-BD-10BE Grade 2 Asylum Function Knob

Arrow MK33-BD-10BE Grade 2 Asylum Function Knob offers an ideal balance between functionality and design for commercial applications. This Grade 2 cylindrical lock features a durable ball knob design and a conventional cylinder, all wrapped in a sophisticated dark oxidized bronze finish that complements various architectural styles. The non-handed design allows for easy installation on doors with a thickness ranging from 1-3/8" to 1-3/4", making it versatile for different settings. Constructed from cold-rolled steel with a zinc dichromate finish, the lock chassis ensures corrosion resistance, while the solid brass latch with a 1/2" throw guarantees reliable security. The MK Series is designed with accessibility in mind, meeting the needs of designers, architects, and contractors without the need for heavy-duty hardware. This knob lock features a 2-1/8" bore diameter and includes a reversible handing for flexibility during installation. Additionally, it's equipped with a solid brass 6-pin cylinder that can be masterkeyed, providing enhanced security options. Certified by BHMA and UL, the Arrow MK33-BD-10BE is a trusted choice for institutions seeking both form and function in their locking solutions. With a one-year limited warranty, this lock promises quality and reliability.

Grade 2 Asylum Function Knob

Grade 2 Asylum Cylindrical Lock, Ball Knob, Conventional Cylinder, Dark Oxidized 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