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

Arrow MK12-BD-10B-LC Grade 2 Storeroom Knob Lock offers a reliable and stylish solution for commercial spaces requiring secure access. This Grade 2 storeroom cylindrical lock features a durable ball knob design and a conventional less cylinder, all finished in an elegant oil-rubbed bronze that enhances any door aesthetics. With a non-handed design, installation is straightforward, accommodating various door thicknesses from 1-3/8" to 1-3/4". Constructed with a cold-rolled steel lock chassis and zinc dichromate finish, this lock offers excellent corrosion resistance, making it ideal for long-term use. The standard 2-1/8" bore through the door and a backset of 2-3/8" ensure compatibility with most commercial applications. The brass latch features a 1/2" throw, while the strike is available in brass, bronze, or stainless steel. The Arrow MK Series is designed to meet accessibility requirements with its clean lines and functional versatility. Additionally, the solid brass 6-pin cylinder can be masterkeyed for enhanced security. With a one-year warranty and UL listing for safety, the Arrow MK12-BD-10B-LC is an excellent choice for architects and contractors seeking reliable door hardware solutions.

Grade 2 Storeroom Knob Lock

Grade 2 Storeroom Cylindrical Lock, Ball Knob, Conventional Less 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