Arrow Lock MK31-TA-26D-CS Grade 2 Communicating Knob Loc

Arrow MK31-TA-26D-CS Grade 2 Communicating Knob Lock is designed for both functionality and style in commercial environments. This Grade 2 double cylinder cylindrical lock features a sleek Tudor knob and a conventional cylinder with a Schlage C keyway, finished in a modern satin chrome that enhances any door's appearance. Built from cold-rolled steel with a zinc dichromate finish, the lock chassis provides exceptional corrosion resistance, ensuring durability and longevity. The MK Series is especially well-suited for accessibility requirements, offering clean lines and an elegant aesthetic that meets commercial standards without the need for heavy-duty hardware. Installation is straightforward, accommodating door thicknesses from 1-3/8" to 1-3/4" and requiring a standard 2-1/8" bore. The lock’s brass latch features a 1/2" throw and a robust construction that aligns with the needs of busy commercial spaces. With a reversible handing feature and standard backsets available in multiple sizes, this lock adapts to various installation scenarios effortlessly. Equipped with a solid brass 6-pin cylinder, this model can be masterkeyed and comes with two keys, providing enhanced security for your premises. The Arrow MK31-TA-26D-CS is an excellent choice for architects, designers, and contractors seeking reliable and stylish locking solutions.

Grade 2 Communicating Knob Loc

Grade 2 Double Cylinder Communicating Cylindrical Lock, Tudor Knob, Conventional Cylinder Schlage C Keyway, 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