Arrow Lock MK04-BD-04 Grade 2 Patio Door Knob

Arrow MK04-BD-04 Grade 2 Patio Knob is the ideal solution for commercial applications requiring a balance of durability and accessibility. This non-keyed cylindrical lock features a stylish ball knob design with a satin brass finish that complements a range of architectural aesthetics. Designed for easy installation, it fits standard door thicknesses of 1-3/8" to 1-3/4" and requires a bore diameter of 2-1/8". Constructed from cold-rolled steel with a zinc dichromate finish, the lock chassis ensures corrosion resistance, making it suitable for various environments. The latch, made of brass with a generous 1/2" throw, guarantees secure closure, while the reversible handing allows for flexibility in installation. The MK Series provides a straightforward solution for accessibility needs, showcasing clean lines and a reliable performance without the bulk of heavy-duty grade one hardware. With options for multiple backsets and a solid brass 6-pin cylinder that can be masterkeyed, this lock is versatile enough to meet diverse demands. UL Listed and BHMA A156.2 certified, the Arrow MK04-BD-04 offers peace of mind and quality assurance for any commercial space.

Grade 2 Patio Knob

Grade 2 Patio Cylindrical Lock, Ball Knob, Non-Keyed, Satin 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