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

Arrow MK17-BD-03-LC Grade 2 Classroom Knob Lock delivers a reliable and stylish locking solution tailored for commercial applications. Designed as a Grade 2 cylindrical lock, it features a durable ball knob and a conventional less cylinder, ensuring ease of use and accessibility. The bright brass finish enhances its aesthetic appeal while providing corrosion resistance, making it suitable for high-traffic environments. This lock is non-handed, allowing for versatile installation on doors with a thickness ranging from 1-3/8" to 1-3/4". Its robust cold-rolled steel lock chassis comes with a zinc dichromate finish, ensuring longevity and performance. The standard 2-1/8" bore required through the door simplifies installation, while the latch, which boasts a 1/2" throw, is crafted from brass for added durability. The MK Series is ideal for environments where heavy-duty hardware isn't necessary, offering a clean design that meets accessibility requirements. It features a solid brass 6-pin cylinder with the Arrow "A" keyway, which can be masterkeyed, ensuring security tailored to your needs. With a limited 1-year warranty, this lock is a practical choice for architects, contractors, and building professionals seeking dependable door hardware.

Grade 2 Classroom Knob Lock

Grade 2 Classroom Cylindrical Lock, Ball Knob, Conventional Less 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