Arrow MK Knob Locksets

Arrow MK Series offer the Security Professional simple solutions to accessibility requirements.

Clean designs, architectural finishes and available functions make this an ideal cylindrical knob for commercial applications where heavy duty grade one hardware may not be necessary.


  • ANSI/BHMA A156.2, Series 4000, Grade 2
  • Underwriters Laboratories (UL and CUL) listed for use on 3 hour, A label single swinging doors.
  • Federal Specifications FF-H-106C, Series 160


Lock Chassis: Cold rolled steel with zinc dichromate finish for corrosion resistance. Requires standard 2-1/8″ (53.97 mm) bore through door.

Backset: 2-3/8″ (60.32 mm) standard. 2-3/4″ (69.85 mm), 3-3/4″ (95.25 mm) and 5″ (127 mm) available.

Door Thickness: 1-3/8″ (34.92 mm) to 1-3/4″ (44.45 mm)

Latch: Brass with 1/2″ (12.7 mm) throw. Latch housing is steel, with zinc dichromate finish for corrosion resistance. 7/8″ (22.225 mm) bore in edge of door is required.

Latch Front: Brass or bronze. Standard faceplate for 2-3/8″ (60.32 mm) backset measures 2-1/4″ (57.15 mm) x 1″ (25.40 mm), with a flat front, for 2-3/4″ (69.85 mm) standard faceplate measures 2-1/4″ (57.15 mm) x 1-1/8″ (28.57 mm), with a beveled front 1/8″ (3.17 mm) in 2″ (50.8 mm).

Strike: Brass, bronze or stainless steel. Standard “T” strike measures 2-3/4″ (69.85 mm) x 1-1/8″ (28.57 mm). Optional ANSI A115.1 strike measures 4-7/8″ (123.82 mm) x 1-1/4″ (31.75 mm). All strikes have a 1-1/4″ (31.75 mm) 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.

Additional information

Weight 1.7 lbs

Entry, Storeroom




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