Arrow Lock MK12-BD-03-LC Grade 2 Storeroom Knob Lock

Arrow MK12-BD-03-LC Grade 2 Storeroom Knob Lock offers a robust and reliable locking solution designed for commercial applications where heavy-duty hardware is not a necessity. This Grade 2 cylindrical lock features a stylish ball knob design and a bright brass finish, ensuring both aesthetic appeal and functionality. Constructed from cold-rolled steel with a zinc dichromate finish, the lock chassis provides excellent corrosion resistance. It accommodates standard door thicknesses of 1-3/8" to 1-3/4" and a standard backset of 2-3/8", with options available for 2-3/4", 3-3/4", and 5" backsets. The lock is non-handed, allowing for easy installation in a variety of settings. The MK12-BD-03-LC includes a solid brass 6-pin cylinder, keyed to a 5-pin standard, and can be masterkeyed for added security flexibility. This lock is UL Listed and meets BHMA A156.2, Series 4000, Grade 2 standards, ensuring it is suitable for commercial use. With a 1-year limited warranty, this storeroom lock not only enhances security but also offers peace of mind for building professionals and knowledgeable homeowners alike.

Grade 2 Storeroom Knob Lock

Grade 2 Storeroom Cylindrical Lock, Ball Knob, Conventional Less Cylinder, Bright Brass 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