Arrow Lock MK12-DD-26D Grade 2 Storeroom Knob Lock

Arrow MK12-DD-26D Grade 2 Storeroom Knob Lock delivers exceptional functionality and security for commercial environments. Designed with a Darrin knob and featuring a sleek satin chrome finish, this Grade 2 cylindrical lock combines durability with modern aesthetics. Its non-handed configuration ensures versatile installation on doors measuring between 1-3/8" and 1-3/4" thick, making it suitable for various applications. Constructed from cold-rolled steel with a zinc dichromate finish, the lock chassis offers corrosion resistance, ensuring longevity in demanding settings. The solid brass 6-pin cylinder includes the Arrow "A" keyway and is compatible with a range of keying options, including masterkeying. Supplied with two brass keys, this lock is ready for secure access right out of the box. The MK Series is designed to meet accessibility requirements, making it an ideal choice for architects and contractors alike. With an adjustable backset and a robust latch with a 1/2" throw, the Arrow MK12-DD-26D guarantees reliable performance. Backed by a one-year limited warranty, this storeroom lock is UL Listed and meets BHMA A156.2, Series 4000 standards, ensuring peace of mind for any commercial application.

Grade 2 Storeroom Knob Lock

Grade 2 Storeroom Cylindrical Lock, Darrin Knob, Conventional Cylinder, 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