Arrow Lock MK17-BD-03 Grade 2 Classroom Knob Lock

Arrow MK17-BD-03 Grade 2 Classroom Knob Lock delivers a robust solution for educational and commercial environments where security and accessibility are paramount. This Grade 2 cylindrical lock features a stylish ball knob design and a conventional cylinder in a bright brass finish, ensuring both aesthetic appeal and durability. The non-handed design allows for versatile installation, making it suitable for various door configurations. Constructed from cold-rolled steel with a zinc dichromate finish, the lock chassis is resistant to corrosion, ensuring longevity even in demanding settings. It accommodates standard door thicknesses between 1-3/8" to 1-3/4" and requires a 2-1/8" bore through the door for easy installation. The latch, crafted from brass, offers a 1/2" throw for reliable operation, while the strike is available in brass, bronze, or stainless steel options. The MK Series is designed with accessibility in mind, offering an ideal solution for areas where heavy-duty hardware is not required. With a UL Listing under BHMA A156.2, Series 4000, Grade 2, this lock provides peace of mind without compromising style. Backed by a one-year limited warranty, the Arrow MK17-BD-03 is a perfect choice for professionals seeking quality and performance in door hardware.

Grade 2 Classroom Knob Lock

Grade 2 Classroom Cylindrical Lock, Ball Knob, Conventional Cylinder, Bright Brass 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