Arrow Lock MK12-DD-10-LC Grade 2 Storeroom Knob Lock

Arrow MK12-DD-10-LC Grade 2 Storeroom Knob Lock combines functionality with durability, making it an excellent choice for commercial applications. Featuring a stylish Darrin knob design and a satin bronze finish, this cylindrical lock not only meets aesthetic preferences but also adheres to accessibility requirements. The MK Series is thoughtfully engineered for environments where heavy-duty hardware is not essential, providing a reliable locking solution. Crafted from cold-rolled steel with a zinc dichromate finish, the lock chassis offers enhanced corrosion resistance. It accommodates standard door thicknesses of 1-3/8" to 1-3/4", with a 2-1/8" bore requirement. The non-handed design allows for easy installation, while the brass latch provides a smooth operation with a 1/2" throw. This lock features a standard six-pin solid brass cylinder, which can be masterkeyed and comes with two keys for immediate use. With its UL listing and Grade 2 rating, the Arrow MK12-DD-10-LC ensures reliable security and performance. Whether for storerooms or offices, this lock is engineered to deliver peace of mind, making it a smart choice for professionals seeking dependable hardware solutions.

Grade 2 Storeroom Knob Lock

Grade 2 Storeroom Cylindrical Lock, Darrin Knob, Conventional Less Cylinder, Satin Bronze 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