Arrow Lock MK Series Communicating Ball Knob Lock Brushed Chrome Finish - 2-3/4in Backset - Keyway: AR1 - MK31BD26D-300-114

Arrow MK Series offer the Security Professional 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.

• ANSI/BHMA A156.2, Series 4000, Grade 2
• Federal Specifications FF-H-106C, Series 160

• Function: MK31 F80/161S, 160S. Double Cylinder Communicating, Dead locking latch bolt operated by knob one side only except when knob is locked by key. Non removable blank trim outside.
• Design: Ball BD
• Finish: 626 US26D 26D Satin Chromium Plated
• Backset: 2-3/4" (69.85mm) standard.
• 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 2-3/4" (60.32mm) backset measures 2-1/4" (5715mm) x 1-1/8" (28.57mm) with a flat front
• Strike: Brass,bronze or stainlesssteel. Standard "T" strike measures 2-3/4"(69.85mm) x 1-1/8"(28.57mm). All strikes have a 1-1/4"(31.75mm) lip to center dimension.
• Handing: Reversible
• Door Thickness: 1-3/8" (34.92mm) to 1-3/4" (44.45mm)
• Lock Chassis: Cold rolled steel with zinc dichromate finish for corrosion resistance Requires standard 2-1/8" (53.97mm) bore through door
• Cylinder: Solid brass 6 pin cylinder with Arrow "A" keyway, keyed to 5 pins. Supplied with two 5 pin brass keys