Arrow Lock MK17-TA-26D Grade 2 Classroom Knob Lock

Arrow MK17-TA-26D Grade 2 Classroom Knob Lock delivers a robust and reliable locking solution tailored for educational and commercial environments. Featuring a Tudor knob design and a conventional cylinder, this Grade 2 cylindrical lock is constructed from cold-rolled steel with a satin chrome finish, ensuring both durability and style. The non-handed design allows for flexible installation, accommodating doors with a thickness of 1-3/8" to 1-3/4". Engineered for accessibility, the Arrow MK Series meets the demands of modern architectural requirements while maintaining a clean aesthetic. The lock chassis requires a standard 2-1/8" bore, and the latch, made from brass with a 1/2" throw, is housed in corrosion-resistant steel. With multiple backset options available, including the standard 2-3/8", this lock can be customized to fit various door configurations. The solid brass 6-pin cylinder, keyed to 5 pins for stock, is compatible with master keying systems, providing enhanced security options. Supplied with two brass keys, the MK17-TA-26D is UL Listed and meets BHMA A156.2 standards, ensuring peace of mind for any commercial application. Choose this lock for a blend of functionality, aesthetics, and reliability that is built to last.

Grade 2 Classroom Knob Lock

Grade 2 Classroom Cylindrical Lock, Tudor Knob, Conventional Cylinder, Satin Chrome 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