Arrow Lock MK12-BD-10B Grade 2 Storeroom Knob Lock

Arrow MK12-BD-10B Grade 2 Storeroom Knob Lock offers a reliable solution for commercial applications where heavy-duty hardware is not required. Featuring a sleek ball knob design and an oil-rubbed bronze finish, this Grade 2 storeroom lock combines aesthetics with functionality. Its non-handed design allows for easy installation on doors ranging from 1-3/8" to 1-3/4" thick. Constructed with a cold-rolled steel chassis and zinc dichromate finish, the MK12-BD-10B ensures durability and corrosion resistance. The lock requires a standard 2-1/8" bore and comes with a conventional solid brass 6-pin cylinder, which is keyed to 5 pins for stock and can be masterkeyed for added convenience. Supplied with two brass keys, this lock is also compatible with various competitive keyways, including Schlage CS. The MK Series is designed to meet accessibility requirements while providing robust security for storerooms and offices. With a 1/2" bolt projection and a standard T-strike, this lock offers dependable performance and peace of mind. Backed by a one-year limited warranty, the Arrow MK12-BD-10B is a solid choice for professionals seeking both style and security in their projects.

Grade 2 Storeroom Knob Lock

Grade 2 Storeroom Cylindrical Lock, Ball Knob, Conventional Cylinder, Oil-Rubbed 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