All ARROW Products

Arrow MK31 BD 26D Communicating Knob Cylindrical Lock, Ball Knob, Arrow A Keyway, T-Strike, Satin Chrome, Non-handed.

  • SKU: MK31BD26D
Arrow MK31 BD 26D Communicating Knob Lock
Arrow MK31 BD 26D Communicating Knob Lock
All ARROW Products

Arrow MK31 BD 26D Communicating Knob Cylindrical Lock, Ball Knob, Arrow A Keyway, T-Strike, Satin Chrome, Non-handed.

  • SKU: MK31BD26D
$330.00/ea
In Stock
In Stock
Choose Your Product Options:
Select Your Vehicle Model *
Select Your Production Year - Hyundai i20 *
Select Your Production Year - Hyundai i20 Active / Coupe *
Select Your Production Year - Hyundai i20 N / N Line *
Chassis Type *

Your vehicle model is compatible! ✅ Click the "Add to Cart" button below to proceed with your order.

Product Type: Universal Fit with Enhanced Compatibility

Compatibility Type:

  • Your vehicle's dimentions are confirmed to be compatible with these covers.
  • Installation Kit will be provided for seatbelt, headrest, latch & button compatibility.
  • Covers will be adjusted before shipping (if needed) to improve compatibility with your vehicle.

(Check other products that fit your vehicle)

You can view our installation video before making your purchase.

Your vehicle model may still be compatible! 💬

Reach out to us via our live chat at the bottom right corner or send us a quick e-mail with your car brand, model and year.

Alternatively you can also check our Custom Fit Seat Covers that may be compatible with your vehicle by clicking here

I want to add Further Vehicle Details to Improve Compatibility
Adding further vehicle details like your back seat layout or headrest type helps us ensure full compatibility. This step is optional, but highly recommended to avoid any fitting issues.

Select Your Rear Seat Configuration

Rear Seats Sitting Area
Rear Seats Back Area
Car Seat Cover Seat Type
Car Seat Cover Seat Type
Car Seat Cover Seat Type
Car Seat Cover Seat Type
Car Seat Cover Seat Type
Car Seat Cover Seat Type
Car Seat Cover Seat Type
Car Seat Cover Seat Type
Car Seat Cover Seat Type
Car Seat Cover Seat Type
Car Seat Cover Seat Type
Car Seat Cover Seat Type
Car Seat Cover Seat Type
Car Seat Cover Seat Type
Car Seat Cover Seat Type
Car Seat Cover Seat Type
Car Seat Cover Seat Type
Car Seat Cover Seat Type
Car Seat Cover Seat Type
Car Seat Cover Seat Type
Car Seat Cover Seat Type
Car Seat Cover Seat Type
Car Seat Cover Seat Type
Car Seat Cover Seat Type
Car Seat Cover Seat Type
Car Seat Cover Seat Type
Car Seat Cover Seat Type
Car Seat Cover Seat Type
Car Seat Cover Seat Type
Car Seat Cover Seat Type
Car Seat Cover Seat Type
Car Seat Cover Seat Type
Car Seat Cover Seat Type
Car Seat Cover Seat Type
Car Seat Cover Seat Type
Car Seat Cover Seat Type

Select Your Headrest Configuration

Front Seat Headrests
Rear Seat Headrests
Let us know if you can completely detach and take out your headrests from your seats. If not, please choose the appropriate option from above, we will modify your covers to be compatible for fixed headrest configuration.
Car Seat Cover Seat Type
Front Seat Headrests
Car Seat Cover Seat Type
Front Seat Headrests
Car Seat Cover Seat Type
Front Seat Headrests
Car Seat Cover Seat Type
Rear Seat Headrests
Car Seat Cover Seat Type
Rear Seat Headrests
Car Seat Cover Seat Type
Rear Seat Headrests
Car Seat Cover Seat Type
Let us know which headrest(s) are not detachable
The covers will be modified to be compatible with your headrest configuration.
I want to add Embrodiery Text / Logo
Type of Embroidery
Text & Desired Font
Please type the text you want us to use along with the font name. Please note that we will try to match the font the best we can but the final result may differ from the original selection. We are doing this work by hand and embroidery style limits the color, detail and design choices.
Choose Your Text Color
Please choose your desired color for your customization. Please note that we will try to match it the best we can but the final result may differ from the original selection. We are doing this work by hand and embroidery style limits the color, detail and design choices.
Embrodiery Size *
Embrodiery Count Up to 10 CM / 4 INCHES or less *
Embrodiery Count Up to 15 CM / 6 INCHES *
Embrodiery Count Up to 20 CM / 8 INCHES *
Embrodiery Count Up to 30 CM / 12 INCHES *
Embrodiery Count Up to 40 CM / 15.50 INCHES *
Embrodiery Placement / Location *
Please explain where you want the embrodiery to be placed for each logo application.
I want to add a Chrome Logo Emblem
Chrome Logo / Emblem Selection
Emblem dimentions: 7 cm lenght / 2 cm width / 2 mm height (2.75 inches long / 0.78 inches wide / 0.07 inches tall) made out of chromium base with laminated top section.
Emblem Count *
Emblem Placement / Location *
Please explain where you want the emblem(s) to be placed for each application.

Technical Specs

Function 31-Communicating
Function Family Communicating
ANSI Function
F80 - Communicating
Lever/Knob Design BD - Ball Knob
Lever/Knob Design Family Ball Knob
Rose/Escutcheon Design
2-9/16" Rose Diameter
Rose/Escutcheon Dimensions 2-9/16"
Cylinder Type
Conventional Cylinder
Num Pins 6
Key(s) Cut
Num of Keys 2
Handing Non-handed
Door Thickness 1-3/8" to 1-3/4"
Std. Latch Number 114
Std. Latch Type Deadlatch
Std. Latch Backset Dim 2-3/4"
Latch Bore Diameter 7/8"
Lock Face Size 1-1/8" x 2-1/4"
Bolt Projection 1/2"
Bore Hole Diameter 2-1/8"
Std. Strike Number 300
Std. Strike Type T-Strike
Std. Strike Height 2-3/4"
Std. Strike Width 1-1/8"
Screws Wood/Machine Screws
Product Type Cylindrical Lock

Product Specs

Vendor Assa Abloy
Manufacturer Arrow
SKU MK31-BD-26D
Grade Grade 2
Installation Commercial
Origin Mexico
Unit of Measure Each
Base Material Brass, Bronze
UL Listing Type BHMA A156.2, Series 4000, Grade 2, UL Listed
ANSI Number F80
Limited Warranty 1 Year Warranty
Fire Rated 3 Hours {A}
Burglar Rated No
Finish 626/US26D
Finish Description Satin Chrome
Finish Family Matte Silver

Arrow MK31 BD 26D Communicating Knob Cylindrical Lock, Ball Knob, Arrow A Keyway, T-Strike, Satin Chrome, Non-handed.

MK Series Grade 2 Cylindrical Knob Locks

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 – 2-3/4" (69.85mm)
  • 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 a zinc dichromate finish for corrosion resistance. 7/8" (22.225mm) bore in the edge of the 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 pins for stock. Can be master keyed, grandmaster keyed and construction master keyed. 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.

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