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

Arrow MK12-BD-10 Grade 2 Storeroom Knob Lock provides a reliable and stylish solution for commercial applications that require effective access control. This Grade 2 storeroom cylindrical lock features a durable ball knob design and a conventional cylinder, finished in a sophisticated satin bronze that complements various architectural styles. Engineered from cold rolled steel with a zinc dichromate finish, the lock chassis offers excellent corrosion resistance. It accommodates a standard 2-1/8" bore and is designed for doors with a thickness ranging from 1-3/8" to 1-3/4". The reversible handing ensures versatility in installation, while the solid brass 6-pin cylinder can be masterkeyed or keyed to competitive manufacturers' keyways. The MK Series is ideal for applications where heavy-duty hardware may not be necessary, yet still meets accessibility requirements. With a 1/2" bolt projection and options for backsets of 2-3/8", 2-3/4", and beyond, this lock provides flexibility in deployment. The included two 5-pin brass keys ensure that you have immediate access while maintaining security. UL Listed and backed by a one-year warranty, the Arrow MK12-BD-10 provides peace of mind for contractors and building professionals seeking quality in door hardware solutions.

Grade 2 Storeroom Knob Lock

Grade 2 Storeroom Cylindrical Lock, Ball Knob, Conventional 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