Arrow Lock MK05-BD-26D Grade 2 Communicating Door Knob

Arrow MK05-BD-26D Grade 2 Communicating Knob features a sleek ball knob design and a durable satin chrome finish, making it an ideal choice for commercial applications where heavy-duty hardware is not required. This Grade 2 cylindrical lock is non-keyed and non-handed, offering flexibility and ease of installation. Crafted from cold-rolled steel with a zinc dichromate finish, the lock chassis is designed for corrosion resistance, enhancing its longevity. Compatible with door thicknesses ranging from 1-3/8" to 1-3/4", the MK05-BD-26D features a standard 2-1/8" bore and a 2-3/8" backset, with optional variations available. The brass latch offers a reliable 1/2" throw, while the latch housing includes a 7/8" bore for proper installation. The lock's 2-9/16" rose escutcheon provides a polished aesthetic, and it is UL listed under BHMA A156.2, Series 4000, Grade 2. Designed with architects and contractors in mind, this lock meets accessibility requirements while maintaining a clean, modern look. Backed by a one-year limited warranty, the Arrow MK05-BD-26D is a dependable choice for securing your commercial spaces with style and functionality.

Grade 2 Communicating Knob

Grade 2 Communicating Cylindrical Lock, Ball Knob, Non-Keyed, 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