Arrow Lock MK17-BD-04 Grade 2 Classroom Knob Lock

Arrow MK17-BD-04 Grade 2 Classroom Knob Lock is a robust and versatile solution designed to meet the demands of commercial applications. With its Grade 2 classification, this cylindrical lock features a stylish ball knob and a conventional cylinder, all finished in a sleek satin brass that adds a touch of elegance to any setting. The lock is non-handed, making installation straightforward and adaptable to a variety of door orientations. Constructed from cold-rolled steel with a zinc dichromate finish, the lock chassis offers exceptional corrosion resistance, ensuring durability and long-lasting performance. It accommodates standard door thicknesses between 1-3/8" and 1-3/4", and the 2-1/8" bore size makes it compatible with most doors. The included solid brass 6-pin cylinder is keyed to 5 pins for stock, with options for masterkeying and various competitive keyways available. The MK Series is ideal for environments where heavy-duty hardware is unnecessary yet reliable access control is needed. With a fire rating of 3 hours and compliance with ANSI standards, the Arrow MK17-BD-04 not only enhances security but also contributes to safety in your building. This lock provides a seamless blend of functionality, style, and reliability for any commercial space.

Grade 2 Classroom Knob Lock

Grade 2 Classroom Cylindrical Lock, Ball Knob, Conventional Cylinder, Satin 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