Master Lock 6421 ProSeries Weather Tough Interchangeable Core Padlock 2-1/8" (54mm)

  • 6421 WCS64 KA LZ3 1KEY

    $26.20 37% Off

    Shackle Length
    1-1/8" Boron
    Chain
    Not Included
    Function
    Non-Key Retaining
    Cylinder Type
    Lock Body Only
    Number of Pins
    6 Pins
    Cylinder Type Finish
    Satin Brass
    Keying
    Keyed Alike
    Custom Marking
    Laser engraved in 3 areas
    Number of Key
    1 key per lock
  • 6421 LF CN WCS64 KA LZ2 3KEY

    $30.43 37% Off

    Shackle Length
    1-1/2" Boron
    Chain
    Sash Chain
    Function
    Non-Key Retaining
    Cylinder Type
    Lock Body Only
    Number of Pins
    6 Pins
    Cylinder Type Finish
    Satin Brass
    Keying
    Keyed Alike
    Custom Marking
    Laser engraved in 2 areas
    Number of Key
    3 keys per lock
  • 6421 LJ CN CY6 26D KA LZ3 NOKEY

    $43.66 37% Off

    Shackle Length
    2-1/2" Boron
    Chain
    Sash Chain
    Function
    Non-Key Retaining
    Cylinder Type
    Standard SFIC
    Number of Pins
    6 Pins
    Cylinder Type Finish
    Satin Chrome
    Keying
    Keyed Alike
    Custom Marking
    Laser engraved in 3 areas
    Number of Key
    0 keys per lock
  • 6421 LF WCS 26D MK LZ4 NOKEY

    $30.24 37% Off

    Shackle Length
    1-1/2" Boron
    Chain
    Not Included
    Function
    Non-Key Retaining
    Cylinder Type
    Lock Body Only
    Number of Pins
    Not Included
    Cylinder Type Finish
    Satin Chrome
    Custom Marking
    Laser engraved in 4 areas
    Number of Key
    0 keys per lock
  • 6421 CN WCS 26D KAMK LZ1 1KEY

    $28.19 37% Off

    Shackle Length
    1-1/8" Boron
    Chain
    Sash Chain
    Function
    Non-Key Retaining
    Cylinder Type
    Lock Body Only
    Number of Pins
    Not Included
    Cylinder Type Finish
    Satin Chrome
    Custom Marking
    Laser engraved in 1 area
    Number of Key
    1 key per lock
  • 6421 CN WCS6 KD 1KEY

    $23.92 37% Off

    Shackle Length
    1-1/8" Boron
    Chain
    Sash Chain
    Function
    Non-Key Retaining
    Cylinder Type
    Lock Body Only
    Number of Pins
    6 Pins
    Cylinder Type Finish
    Not Included
    Keying
    Keyed Different
    Custom Marking
    Not Included
    Number of Key
    1 key per lock
  • 6421 LF WCS 26D KD 3KEY

    $23.95 37% Off

    Shackle Length
    1-1/2" Boron
    Chain
    Not Included
    Function
    Non-Key Retaining
    Cylinder Type
    Lock Body Only
    Number of Pins
    Not Included
    Cylinder Type Finish
    Satin Chrome
    Keying
    Keyed Different
    Custom Marking
    Not Included
    Number of Key
    3 keys per lock
  • 6421 WCS7 MK LZ2

    $27.02 37% Off

    Shackle Length
    1-1/8" Boron
    Chain
    Not Included
    Function
    Non-Key Retaining
    Cylinder Type
    Lock Body Only
    Number of Pins
    7 Pins
    Cylinder Type Finish
    Not Included
    Custom Marking
    Laser engraved in 2 areas
    Number of Key
    Not Included
  • 6421 LF WCS4 KD LZ2 4KEY

    $28.05 37% Off

    Shackle Length
    1-1/2" Boron
    Chain
    Not Included
    Function
    Non-Key Retaining
    Cylinder Type
    Lock Body Only
    Number of Pins
    Not Included
    Cylinder Type Finish
    Satin Brass
    Keying
    Keyed Different
    Custom Marking
    Laser engraved in 2 areas
    Number of Key
    4 keys per lock
  • 6421 LJ CN CY7 KAMK LZ4 4KEY

    $50.76 37% Off

    Shackle Length
    2-1/2" Boron
    Chain
    Sash Chain
    Function
    Non-Key Retaining
    Cylinder Type
    Standard SFIC
    Number of Pins
    7 Pins
    Cylinder Type Finish
    Not Included
    Custom Marking
    Laser engraved in 4 areas
    Number of Key
    4 keys per lock
  • 6421 LJ CN CY7 26D KD LZ3 NOKEY

    $43.89 37% Off

    Shackle Length
    2-1/2" Boron
    Chain
    Sash Chain
    Function
    Non-Key Retaining
    Cylinder Type
    Standard SFIC
    Number of Pins
    7 Pins
    Cylinder Type Finish
    Satin Chrome
    Keying
    Keyed Different
    Custom Marking
    Laser engraved in 3 areas
    Number of Key
    0 keys per lock
  • 6421 LF WCS4 KAMK LZ4 3KEY

    $32.42 37% Off

    Shackle Length
    1-1/2" Boron
    Chain
    Not Included
    Function
    Non-Key Retaining
    Cylinder Type
    Lock Body Only
    Number of Pins
    Not Included
    Cylinder Type Finish
    Satin Brass
    Custom Marking
    Laser engraved in 4 areas
    Number of Key
    3 keys per lock
  • 6421 LJ CN WCS KAMK LZ3 4KEY

    $35.25 37% Off

    Shackle Length
    2-1/2" Boron
    Chain
    Sash Chain
    Function
    Non-Key Retaining
    Cylinder Type
    Lock Body Only
    Number of Pins
    Not Included
    Cylinder Type Finish
    Not Included
    Custom Marking
    Laser engraved in 3 areas
    Number of Key
    4 keys per lock
  • 6421 LF WCS6 26D KA LZ2 4KEY

    $28.93 37% Off

    Shackle Length
    1-1/2" Boron
    Chain
    Not Included
    Function
    Non-Key Retaining
    Cylinder Type
    Lock Body Only
    Number of Pins
    6 Pins
    Cylinder Type Finish
    Satin Chrome
    Keying
    Keyed Alike
    Custom Marking
    Laser engraved in 2 areas
    Number of Key
    4 keys per lock
  • 6421 WCS74 KA LZ2 NOKEY

    $25.91 37% Off

    Shackle Length
    1-1/8" Boron
    Chain
    Not Included
    Function
    Non-Key Retaining
    Cylinder Type
    Lock Body Only
    Number of Pins
    7 Pins
    Cylinder Type Finish
    Satin Brass
    Keying
    Keyed Alike
    Custom Marking
    Laser engraved in 2 areas
    Number of Key
    0 keys per lock
  • 6421 CN WCS6 26D KD LZ4 4KEY

    $32.12 37% Off

    Shackle Length
    1-1/8" Boron
    Chain
    Sash Chain
    Function
    Non-Key Retaining
    Cylinder Type
    Lock Body Only
    Number of Pins
    6 Pins
    Cylinder Type Finish
    Satin Chrome
    Keying
    Keyed Different
    Custom Marking
    Laser engraved in 4 areas
    Number of Key
    4 keys per lock
  • 6421 CN WCS6 26D KAMK LZ3 1KEY

    $30.99 37% Off

    Shackle Length
    1-1/8" Boron
    Chain
    Sash Chain
    Function
    Non-Key Retaining
    Cylinder Type
    Lock Body Only
    Number of Pins
    6 Pins
    Cylinder Type Finish
    Satin Chrome
    Custom Marking
    Laser engraved in 3 areas
    Number of Key
    1 key per lock
  • 6421 LF CN NR CY 26D LZ3

    $42.65 37% Off

    Shackle Length
    1-1/2" Boron
    Chain
    Sash Chain
    Function
    Non-Removable Key
    Cylinder Type
    Standard SFIC
    Number of Pins
    Not Included
    Cylinder Type Finish
    Satin Chrome
    Keying
    Not Included
    Custom Marking
    Laser engraved in 3 areas
    Number of Key
    Not Included
  • 6421 LJ CN WCS7 26D KAMK LZ3 3KEY

    $35.06 37% Off

    Shackle Length
    2-1/2" Boron
    Chain
    Sash Chain
    Function
    Non-Key Retaining
    Cylinder Type
    Lock Body Only
    Number of Pins
    7 Pins
    Cylinder Type Finish
    Satin Chrome
    Custom Marking
    Laser engraved in 3 areas
    Number of Key
    3 keys per lock
  • 6421 LF WCS7 26D KD LZ1 4KEY

    $27.76 37% Off

    Shackle Length
    1-1/2" Boron
    Chain
    Not Included
    Function
    Non-Key Retaining
    Cylinder Type
    Lock Body Only
    Number of Pins
    7 Pins
    Cylinder Type Finish
    Satin Chrome
    Keying
    Keyed Different
    Custom Marking
    Laser engraved in 1 area
    Number of Key
    4 keys per lock
  • 6421 LJ CN WCS74 KD LZ1 1KEY

    $28.09 37% Off

    Shackle Length
    2-1/2" Boron
    Chain
    Sash Chain
    Function
    Non-Key Retaining
    Cylinder Type
    Lock Body Only
    Number of Pins
    7 Pins
    Cylinder Type Finish
    Satin Brass
    Keying
    Keyed Different
    Custom Marking
    Laser engraved in 1 area
    Number of Key
    1 key per lock
  • 6421 LF CN NR CY6 MK LZ2

    $43.24 37% Off

    Shackle Length
    1-1/2" Boron
    Chain
    Sash Chain
    Function
    Non-Removable Key
    Cylinder Type
    Standard SFIC
    Number of Pins
    6 Pins
    Cylinder Type Finish
    Not Included
    Custom Marking
    Laser engraved in 2 areas
    Number of Key
    Not Included
  • 6421 LJ CN NR CY6 LZ4 NOKEY

    $44.18 37% Off

    Shackle Length
    2-1/2" Boron
    Chain
    Sash Chain
    Function
    Non-Removable Key
    Cylinder Type
    Standard SFIC
    Number of Pins
    6 Pins
    Cylinder Type Finish
    Not Included
    Keying
    Not Included
    Custom Marking
    Laser engraved in 4 areas
    Number of Key
    0 keys per lock
  • 6421 LF CN WCS64 4KEY

    $28.05 37% Off

    Shackle Length
    1-1/2" Boron
    Chain
    Sash Chain
    Function
    Non-Key Retaining
    Cylinder Type
    Lock Body Only
    Number of Pins
    6 Pins
    Cylinder Type Finish
    Satin Brass
    Keying
    Not Included
    Custom Marking
    Not Included
    Number of Key
    4 keys per lock
  • 6421 CY6 26D KAMK 4KEY

    $39.59 37% Off

    Shackle Length
    1-1/8" Boron
    Chain
    Not Included
    Function
    Non-Key Retaining
    Cylinder Type
    Standard SFIC
    Number of Pins
    6 Pins
    Cylinder Type Finish
    Satin Chrome
    Custom Marking
    Not Included
    Number of Key
    4 keys per lock
  • 6421 CN WCS74 KD LZ4

    $30.63 37% Off

    Shackle Length
    1-1/8" Boron
    Chain
    Sash Chain
    Function
    Non-Key Retaining
    Cylinder Type
    Lock Body Only
    Number of Pins
    7 Pins
    Cylinder Type Finish
    Satin Brass
    Keying
    Keyed Different
    Custom Marking
    Laser engraved in 4 areas
    Number of Key
    Not Included
  • 6421 NR CY4 KAMK LZ1 3KEY

    $39.69 37% Off

    Shackle Length
    1-1/8" Boron
    Chain
    Not Included
    Function
    Non-Removable Key
    Cylinder Type
    Standard SFIC
    Number of Pins
    Not Included
    Cylinder Type Finish
    Satin Brass
    Custom Marking
    Laser engraved in 1 area
    Number of Key
    3 keys per lock
  • 6421 LJ CN NR CY64 KD LZ3 1KEY

    $42.78 37% Off

    Shackle Length
    2-1/2" Boron
    Chain
    Sash Chain
    Function
    Non-Removable Key
    Cylinder Type
    Standard SFIC
    Number of Pins
    6 Pins
    Cylinder Type Finish
    Satin Brass
    Keying
    Keyed Different
    Custom Marking
    Laser engraved in 3 areas
    Number of Key
    1 key per lock
  • 6421 LF NR CY 26D KD LZ4 4KEY

    $43.85 37% Off

    Shackle Length
    1-1/2" Boron
    Chain
    Not Included
    Function
    Non-Removable Key
    Cylinder Type
    Standard SFIC
    Number of Pins
    Not Included
    Cylinder Type Finish
    Satin Chrome
    Keying
    Keyed Different
    Custom Marking
    Laser engraved in 4 areas
    Number of Key
    4 keys per lock
  • 6421 LF NR CY4 LZ4 1KEY

    $41.25 37% Off

    Shackle Length
    1-1/2" Boron
    Chain
    Not Included
    Function
    Non-Removable Key
    Cylinder Type
    Standard SFIC
    Number of Pins
    Not Included
    Cylinder Type Finish
    Satin Brass
    Keying
    Not Included
    Custom Marking
    Laser engraved in 4 areas
    Number of Key
    1 key per lock
  • 6421 LJ CN NR WCS7 MK NOKEY

    $28.68 37% Off

    Shackle Length
    2-1/2" Boron
    Chain
    Sash Chain
    Function
    Non-Removable Key
    Cylinder Type
    Lock Body Only
    Number of Pins
    7 Pins
    Cylinder Type Finish
    Not Included
    Custom Marking
    Not Included
    Number of Key
    0 keys per lock
  • 6421 LJ CN NR CY74 LZ1

    $41.09 37% Off

    Shackle Length
    2-1/2" Boron
    Chain
    Sash Chain
    Function
    Non-Removable Key
    Cylinder Type
    Standard SFIC
    Number of Pins
    7 Pins
    Cylinder Type Finish
    Satin Brass
    Keying
    Not Included
    Custom Marking
    Laser engraved in 1 area
    Number of Key
    Not Included
  • 6421 LF NR CY4 MK LZ1 1KEY

    $39.04 37% Off

    Shackle Length
    1-1/2" Boron
    Chain
    Not Included
    Function
    Non-Removable Key
    Cylinder Type
    Standard SFIC
    Number of Pins
    Not Included
    Cylinder Type Finish
    Satin Brass
    Custom Marking
    Laser engraved in 1 area
    Number of Key
    1 key per lock
  • 6421 LJ CN NR WCS LZ1 1KEY

    $26.98 37% Off

    Shackle Length
    2-1/2" Boron
    Chain
    Sash Chain
    Function
    Non-Removable Key
    Cylinder Type
    Lock Body Only
    Number of Pins
    Not Included
    Cylinder Type Finish
    Not Included
    Keying
    Not Included
    Custom Marking
    Laser engraved in 1 area
    Number of Key
    1 key per lock
  • 6421 LF NR CY6 MK LZ1 1KEY

    $39.04 37% Off

    Shackle Length
    1-1/2" Boron
    Chain
    Not Included
    Function
    Non-Removable Key
    Cylinder Type
    Standard SFIC
    Number of Pins
    6 Pins
    Cylinder Type Finish
    Not Included
    Custom Marking
    Laser engraved in 1 area
    Number of Key
    1 key per lock
  • 6421 LF NR CY KAMK NOKEY

    $38.52 37% Off

    Shackle Length
    1-1/2" Boron
    Chain
    Not Included
    Function
    Non-Removable Key
    Cylinder Type
    Standard SFIC
    Number of Pins
    Not Included
    Cylinder Type Finish
    Not Included
    Custom Marking
    Not Included
    Number of Key
    0 keys per lock
  • 6421 LF CN NR WCS MK LZ3 1KEY

    $31.64 37% Off

    Shackle Length
    1-1/2" Boron
    Chain
    Sash Chain
    Function
    Non-Removable Key
    Cylinder Type
    Lock Body Only
    Number of Pins
    Not Included
    Cylinder Type Finish
    Not Included
    Custom Marking
    Laser engraved in 3 areas
    Number of Key
    1 key per lock
  • 6421 LF NR CY6 26D KD LZ2 3KEY

    $39.75 37% Off

    Shackle Length
    1-1/2" Boron
    Chain
    Not Included
    Function
    Non-Removable Key
    Cylinder Type
    Standard SFIC
    Number of Pins
    6 Pins
    Cylinder Type Finish
    Satin Chrome
    Keying
    Keyed Different
    Custom Marking
    Laser engraved in 2 areas
    Number of Key
    3 keys per lock
  • 6421 LF CN NR WCS 26D KD LZ4 3KEY

    $32.35 37% Off

    Shackle Length
    1-1/2" Boron
    Chain
    Sash Chain
    Function
    Non-Removable Key
    Cylinder Type
    Lock Body Only
    Number of Pins
    Not Included
    Cylinder Type Finish
    Satin Chrome
    Keying
    Keyed Different
    Custom Marking
    Laser engraved in 4 areas
    Number of Key
    3 keys per lock
  • 6421 CN NR CY4 KAMK LZ3 1KEY

    $43.99 37% Off

    Shackle Length
    1-1/8" Boron
    Chain
    Sash Chain
    Function
    Non-Removable Key
    Cylinder Type
    Standard SFIC
    Number of Pins
    Not Included
    Cylinder Type Finish
    Satin Brass
    Custom Marking
    Laser engraved in 3 areas
    Number of Key
    1 key per lock
  • 6421 LJ CN NR WCS7 KA LZ1 1KEY

    $28.97 37% Off

    Shackle Length
    2-1/2" Boron
    Chain
    Sash Chain
    Function
    Non-Removable Key
    Cylinder Type
    Lock Body Only
    Number of Pins
    7 Pins
    Cylinder Type Finish
    Not Included
    Keying
    Keyed Alike
    Custom Marking
    Laser engraved in 1 area
    Number of Key
    1 key per lock
  • 6421 NR CY7 KD LZ3 4KEY

    $42.03 37% Off

    Shackle Length
    1-1/8" Boron
    Chain
    Not Included
    Function
    Non-Removable Key
    Cylinder Type
    Standard SFIC
    Number of Pins
    7 Pins
    Cylinder Type Finish
    Not Included
    Keying
    Keyed Different
    Custom Marking
    Laser engraved in 3 areas
    Number of Key
    4 keys per lock
  • 6421 NR CY7 KA LZ3 NOKEY

    $40.31 37% Off

    Shackle Length
    1-1/8" Boron
    Chain
    Not Included
    Function
    Non-Removable Key
    Cylinder Type
    Standard SFIC
    Number of Pins
    7 Pins
    Cylinder Type Finish
    Not Included
    Keying
    Keyed Alike
    Custom Marking
    Laser engraved in 3 areas
    Number of Key
    0 keys per lock
  • 6421 CN NR CY6 26D LZ2 NOKEY

    $39.72 37% Off

    Shackle Length
    1-1/8" Boron
    Chain
    Sash Chain
    Function
    Non-Removable Key
    Cylinder Type
    Standard SFIC
    Number of Pins
    6 Pins
    Cylinder Type Finish
    Satin Chrome
    Keying
    Not Included
    Custom Marking
    Laser engraved in 2 areas
    Number of Key
    0 keys per lock
  • 6421 NR CY7 26D 4KEY

    $37.83 37% Off

    Shackle Length
    1-1/8" Boron
    Chain
    Not Included
    Function
    Non-Removable Key
    Cylinder Type
    Standard SFIC
    Number of Pins
    7 Pins
    Cylinder Type Finish
    Satin Chrome
    Keying
    Not Included
    Custom Marking
    Not Included
    Number of Key
    4 keys per lock
  • 6421 LF CN NR WCS64 KD LZ1 4KEY

    $29.45 37% Off

    Shackle Length
    1-1/2" Boron
    Chain
    Sash Chain
    Function
    Non-Removable Key
    Cylinder Type
    Lock Body Only
    Number of Pins
    6 Pins
    Cylinder Type Finish
    Satin Brass
    Keying
    Keyed Different
    Custom Marking
    Laser engraved in 1 area
    Number of Key
    4 keys per lock
  • 6421 NR CY7 26D KA LZ1 3KEY

    $38.81 37% Off

    Shackle Length
    1-1/8" Boron
    Chain
    Not Included
    Function
    Non-Removable Key
    Cylinder Type
    Standard SFIC
    Number of Pins
    7 Pins
    Cylinder Type Finish
    Satin Chrome
    Keying
    Keyed Alike
    Custom Marking
    Laser engraved in 1 area
    Number of Key
    3 keys per lock
  • 6421 CN NR CY64 LZ2 4KEY

    $42.32 37% Off

    Shackle Length
    1-1/8" Boron
    Chain
    Sash Chain
    Function
    Non-Removable Key
    Cylinder Type
    Standard SFIC
    Number of Pins
    6 Pins
    Cylinder Type Finish
    Satin Brass
    Keying
    Not Included
    Custom Marking
    Laser engraved in 2 areas
    Number of Key
    4 keys per lock
  • 6421 LJ NR WCS64 KAMK

    $25.65 37% Off

    Shackle Length
    2-1/2" Boron
    Chain
    Not Included
    Function
    Non-Removable Key
    Cylinder Type
    Lock Body Only
    Number of Pins
    6 Pins
    Cylinder Type Finish
    Satin Brass
    Custom Marking
    Not Included
    Number of Key
    Not Included
  • 6421 LF NR WCS KD LZ1

    $24.05 37% Off

    Shackle Length
    1-1/2" Boron
    Chain
    Not Included
    Function
    Non-Removable Key
    Cylinder Type
    Lock Body Only
    Number of Pins
    Not Included
    Cylinder Type Finish
    Not Included
    Keying
    Keyed Different
    Custom Marking
    Laser engraved in 1 area
    Number of Key
    Not Included
Showing 101 - 150 of 27015 items

Product Features

  • 2-1/8" (54mm) wide body
  • Boron Shackle
  • Shackle Dimensions:
    • Shackle Width: 5/16" (8mm)
    • Vertical Clearance: 1-1/8" (24mm)
    • Horizontal Clearance: 7/8" (22mm)
  • All orders must be in increments of 6