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

  • 6421 LF NR WCS6 26D KD LZ4 4KEY

    $30.85 37% Off

    Shackle Length
    1-1/2" Boron
    Chain
    Not Included
    Function
    Non-Removable Key
    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 NR WCS4 KD LZ2 NOKEY

    $23.92 37% Off

    Shackle Length
    1-1/8" Boron
    Chain
    Not Included
    Function
    Non-Removable Key
    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
    0 keys per lock
  • 6421 LJ CY6 26D MK LZ1 3KEY

    $40.47 37% Off

    Shackle Length
    2-1/2" Boron
    Chain
    Not Included
    Function
    Non-Key Retaining
    Cylinder Type
    Standard SFIC
    Number of Pins
    6 Pins
    Cylinder Type Finish
    Satin Chrome
    Custom Marking
    Laser engraved in 1 area
    Number of Key
    3 keys per lock
  • 6421 NR WCS4 MK LZ2 4KEY

    $28.51 37% Off

    Shackle Length
    1-1/8" Boron
    Chain
    Not Included
    Function
    Non-Removable Key
    Cylinder Type
    Lock Body Only
    Number of Pins
    Not Included
    Cylinder Type Finish
    Satin Brass
    Custom Marking
    Laser engraved in 2 areas
    Number of Key
    4 keys per lock
  • 6421 NR WCS4 KAMK LZ3 4KEY

    $30.79 37% Off

    Shackle Length
    1-1/8" Boron
    Chain
    Not Included
    Function
    Non-Removable Key
    Cylinder Type
    Lock Body Only
    Number of Pins
    Not Included
    Cylinder Type Finish
    Satin Brass
    Custom Marking
    Laser engraved in 3 areas
    Number of Key
    4 keys per lock
  • 6421 LF NR WCS

    $22.65 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
    Not Included
    Custom Marking
    Not Included
    Number of Key
    Not Included
  • 6421 CN NR WCS 26D KAMK LZ2 1KEY

    $29.59 37% Off

    Shackle Length
    1-1/8" Boron
    Chain
    Sash Chain
    Function
    Non-Removable Key
    Cylinder Type
    Lock Body Only
    Number of Pins
    Not Included
    Cylinder Type Finish
    Satin Chrome
    Custom Marking
    Laser engraved in 2 areas
    Number of Key
    1 key per lock
  • 6421 CY4 MK LZ2

    $38.91 37% Off

    Shackle Length
    1-1/8" Boron
    Chain
    Not Included
    Function
    Non-Key Retaining
    Cylinder Type
    Standard SFIC
    Number of Pins
    Not Included
    Cylinder Type Finish
    Satin Brass
    Custom Marking
    Laser engraved in 2 areas
    Number of Key
    Not Included
  • 6421 CY6 KD LZ2 3KEY

    $38.22 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
    Not Included
    Keying
    Keyed Different
    Custom Marking
    Laser engraved in 2 areas
    Number of Key
    3 keys per lock
  • 6421 LJ WCS MK LZ2 1KEY

    $27.57 37% Off

    Shackle Length
    2-1/2" Boron
    Chain
    Not Included
    Function
    Non-Key Retaining
    Cylinder Type
    Lock Body Only
    Number of Pins
    Not Included
    Cylinder Type Finish
    Not Included
    Custom Marking
    Laser engraved in 2 areas
    Number of Key
    1 key per lock
  • 6421 LF NR WCS74 KD LZ3 3KEY

    $29.26 37% Off

    Shackle Length
    1-1/2" Boron
    Chain
    Not Included
    Function
    Non-Removable Key
    Cylinder Type
    Lock Body Only
    Number of Pins
    7 Pins
    Cylinder Type Finish
    Satin Brass
    Keying
    Keyed Different
    Custom Marking
    Laser engraved in 3 areas
    Number of Key
    3 keys per lock
  • 6421 LF NR WCS74 KA LZ1 NOKEY

    $26.04 37% Off

    Shackle Length
    1-1/2" Boron
    Chain
    Not Included
    Function
    Non-Removable Key
    Cylinder Type
    Lock Body Only
    Number of Pins
    7 Pins
    Cylinder Type Finish
    Satin Brass
    Keying
    Keyed Alike
    Custom Marking
    Laser engraved in 1 area
    Number of Key
    0 keys per lock
  • 6421 LJ WCS 26D KA LZ1 3KEY

    $26.36 37% Off

    Shackle Length
    2-1/2" 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 Alike
    Custom Marking
    Laser engraved in 1 area
    Number of Key
    3 keys per lock
  • 6421 CN NR WCS6 26D KD LZ2 1KEY

    $26.72 37% Off

    Shackle Length
    1-1/8" Boron
    Chain
    Sash Chain
    Function
    Non-Removable Key
    Cylinder Type
    Lock Body Only
    Number of Pins
    6 Pins
    Cylinder Type Finish
    Satin Chrome
    Keying
    Keyed Different
    Custom Marking
    Laser engraved in 2 areas
    Number of Key
    1 key per lock
  • 6421 LF CN CY KA LZ4

    $44.93 37% Off

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

    $39.69 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
    Not Included
    Custom Marking
    Not Included
    Number of Key
    0 keys per lock
  • 6421 LF CN NR WCS64 KA NOKEY

    $26.33 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 Alike
    Custom Marking
    Not Included
    Number of Key
    0 keys per lock
  • 6421 CY64 KAMK LZ2

    $39.79 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 Brass
    Custom Marking
    Laser engraved in 2 areas
    Number of Key
    Not Included
  • 6421 CN NR WCS7 MK LZ1 1KEY

    $28.42 37% Off

    Shackle Length
    1-1/8" 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
    Laser engraved in 1 area
    Number of Key
    1 key per lock
  • 6421 LJ WCS7 26D KD LZ3 4KEY

    $30.69 37% Off

    Shackle Length
    2-1/2" 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 3 areas
    Number of Key
    4 keys per lock
  • 6421 LJ CN WCS 26D KD NOKEY

    $25.58 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
    Satin Chrome
    Keying
    Keyed Different
    Custom Marking
    Not Included
    Number of Key
    0 keys per lock
  • 6421 CY7 KA LZ4 1KEY

    $41.71 37% Off

    Shackle Length
    1-1/8" Boron
    Chain
    Not Included
    Function
    Non-Key Retaining
    Cylinder Type
    Standard SFIC
    Number of Pins
    7 Pins
    Cylinder Type Finish
    Not Included
    Keying
    Keyed Alike
    Custom Marking
    Laser engraved in 4 areas
    Number of Key
    1 key per lock
  • 6421 LF CN CY6 KD LZ3 1KEY

    $42.65 37% Off

    Shackle Length
    1-1/2" Boron
    Chain
    Sash Chain
    Function
    Non-Key Retaining
    Cylinder Type
    Standard SFIC
    Number of Pins
    6 Pins
    Cylinder Type Finish
    Not Included
    Keying
    Keyed Different
    Custom Marking
    Laser engraved in 3 areas
    Number of Key
    1 key per lock
  • 6421 LF CN NR WCS74 KD 1KEY

    $26.56 37% Off

    Shackle Length
    1-1/2" Boron
    Chain
    Sash Chain
    Function
    Non-Removable Key
    Cylinder Type
    Lock Body Only
    Number of Pins
    7 Pins
    Cylinder Type Finish
    Satin Brass
    Keying
    Keyed Different
    Custom Marking
    Not Included
    Number of Key
    1 key per lock
  • 6421 LF CN CY64 KAMK LZ1 4KEY

    $45.32 37% Off

    Shackle Length
    1-1/2" Boron
    Chain
    Sash Chain
    Function
    Non-Key Retaining
    Cylinder Type
    Standard SFIC
    Number of Pins
    6 Pins
    Cylinder Type Finish
    Satin Brass
    Custom Marking
    Laser engraved in 1 area
    Number of Key
    4 keys per lock
  • 6421 WCS64 KD 4KEY

    $23.72 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 Different
    Custom Marking
    Not Included
    Number of Key
    4 keys per lock
  • 6421 LJ NR CY64 KD LZ2 1KEY

    $38.58 37% Off

    Shackle Length
    2-1/2" Boron
    Chain
    Not Included
    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 2 areas
    Number of Key
    1 key per lock
  • 6421 WCS KD LZ3

    $25.32 37% Off

    Shackle Length
    1-1/8" Boron
    Chain
    Not Included
    Function
    Non-Key Retaining
    Cylinder Type
    Lock Body Only
    Number of Pins
    Not Included
    Cylinder Type Finish
    Not Included
    Keying
    Keyed Different
    Custom Marking
    Laser engraved in 3 areas
    Number of Key
    Not Included
  • 6421 LF CN CY7 KA LZ4 1KEY

    $46.04 37% Off

    Shackle Length
    1-1/2" Boron
    Chain
    Sash Chain
    Function
    Non-Key Retaining
    Cylinder Type
    Standard SFIC
    Number of Pins
    7 Pins
    Cylinder Type Finish
    Not Included
    Keying
    Keyed Alike
    Custom Marking
    Laser engraved in 4 areas
    Number of Key
    1 key per lock
  • 6421 CN CY6 KD LZ4 1KEY

    $42.52 37% Off

    Shackle Length
    1-1/8" Boron
    Chain
    Sash Chain
    Function
    Non-Key Retaining
    Cylinder Type
    Standard SFIC
    Number of Pins
    6 Pins
    Cylinder Type Finish
    Not Included
    Keying
    Keyed Different
    Custom Marking
    Laser engraved in 4 areas
    Number of Key
    1 key per lock
  • 6421 LJ NR CY7 26D LZ2

    $39.69 37% Off

    Shackle Length
    2-1/2" 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
    Laser engraved in 2 areas
    Number of Key
    Not Included
  • 6421 WCS 26D KAMK LZ1 4KEY

    $27.99 37% Off

    Shackle Length
    1-1/8" 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 1 area
    Number of Key
    4 keys per lock
  • 6421 CN CY6 26D MK LZ4 3KEY

    $45.81 37% Off

    Shackle Length
    1-1/8" Boron
    Chain
    Sash Chain
    Function
    Non-Key Retaining
    Cylinder Type
    Standard SFIC
    Number of Pins
    6 Pins
    Cylinder Type Finish
    Satin Chrome
    Custom Marking
    Laser engraved in 4 areas
    Number of Key
    3 keys per lock
  • 6421 LF CY6 26D KA LZ4 3KEY

    $43.43 37% Off

    Shackle Length
    1-1/2" Boron
    Chain
    Not Included
    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 4 areas
    Number of Key
    3 keys per lock
  • 6421 WCS7 KA 1KEY

    $23.11 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
    Keying
    Keyed Alike
    Custom Marking
    Not Included
    Number of Key
    1 key per lock
  • 6421 WCS4 KD LZ2 3KEY

    $25.22 37% Off

    Shackle Length
    1-1/8" 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
    3 keys per lock
  • 6421 LF CY64 LZ1 3KEY

    $38.35 37% Off

    Shackle Length
    1-1/2" Boron
    Chain
    Not Included
    Function
    Non-Key Retaining
    Cylinder Type
    Standard SFIC
    Number of Pins
    6 Pins
    Cylinder Type Finish
    Satin Brass
    Keying
    Not Included
    Custom Marking
    Laser engraved in 1 area
    Number of Key
    3 keys per lock
  • 6421 LJ NR WCS6 26D MK LZ1 4KEY

    $28.77 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 Chrome
    Custom Marking
    Laser engraved in 1 area
    Number of Key
    4 keys per lock
  • 6421 WCS6 KA LZ2

    $24.80 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
    Not Included
    Keying
    Keyed Alike
    Custom Marking
    Laser engraved in 2 areas
    Number of Key
    Not Included
  • 6421 LJ NR WCS7 LZ1 NOKEY

    $25.29 37% Off

    Shackle Length
    2-1/2" Boron
    Chain
    Not Included
    Function
    Non-Removable Key
    Cylinder Type
    Lock Body Only
    Number of Pins
    7 Pins
    Cylinder Type Finish
    Not Included
    Keying
    Not Included
    Custom Marking
    Laser engraved in 1 area
    Number of Key
    0 keys per lock
  • 6421 LF CN CY6 26D KAMK 3KEY

    $42.62 37% Off

    Shackle Length
    1-1/2" Boron
    Chain
    Sash Chain
    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
    3 keys per lock
  • 6421 LJ NR WCS7 KAMK LZ4 NOKEY

    $32.36 37% Off

    Shackle Length
    2-1/2" Boron
    Chain
    Not Included
    Function
    Non-Removable Key
    Cylinder Type
    Lock Body Only
    Number of Pins
    7 Pins
    Cylinder Type Finish
    Not Included
    Custom Marking
    Laser engraved in 4 areas
    Number of Key
    0 keys per lock
  • 6421 LF CN WCS4 KAMK LZ1 3KEY

    $31.02 37% Off

    Shackle Length
    1-1/2" Boron
    Chain
    Sash Chain
    Function
    Non-Key Retaining
    Cylinder Type
    Lock Body Only
    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 NR WCS74 KD LZ3 3KEY

    $29.39 37% Off

    Shackle Length
    2-1/2" Boron
    Chain
    Not Included
    Function
    Non-Removable Key
    Cylinder Type
    Lock Body Only
    Number of Pins
    7 Pins
    Cylinder Type Finish
    Satin Brass
    Keying
    Keyed Different
    Custom Marking
    Laser engraved in 3 areas
    Number of Key
    3 keys per lock
  • 6421 LJ NR WCS74 KAMK LZ3

    $30.96 37% Off

    Shackle Length
    2-1/2" Boron
    Chain
    Not Included
    Function
    Non-Removable Key
    Cylinder Type
    Lock Body Only
    Number of Pins
    7 Pins
    Cylinder Type Finish
    Satin Brass
    Custom Marking
    Laser engraved in 3 areas
    Number of Key
    Not Included
  • 6421 CN CY74 KAMK LZ2 4KEY

    $46.30 37% Off

    Shackle Length
    1-1/8" Boron
    Chain
    Sash Chain
    Function
    Non-Key Retaining
    Cylinder Type
    Standard SFIC
    Number of Pins
    7 Pins
    Cylinder Type Finish
    Satin Brass
    Custom Marking
    Laser engraved in 2 areas
    Number of Key
    4 keys per lock
  • 6421 LJ CN CY 26D KA LZ3

    $43.66 37% Off

    Shackle Length
    2-1/2" Boron
    Chain
    Sash Chain
    Function
    Non-Key Retaining
    Cylinder Type
    Standard SFIC
    Number of Pins
    Not Included
    Cylinder Type Finish
    Satin Chrome
    Keying
    Keyed Alike
    Custom Marking
    Laser engraved in 3 areas
    Number of Key
    Not Included
  • 6421 LF CY74 KD 3KEY

    $38.06 37% Off

    Shackle Length
    1-1/2" Boron
    Chain
    Not Included
    Function
    Non-Key Retaining
    Cylinder Type
    Standard SFIC
    Number of Pins
    7 Pins
    Cylinder Type Finish
    Satin Brass
    Keying
    Keyed Different
    Custom Marking
    Not Included
    Number of Key
    3 keys per lock
  • 6421 LJ CN CY6 KA LZ3 4KEY

    $46.26 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
    Not Included
    Keying
    Keyed Alike
    Custom Marking
    Laser engraved in 3 areas
    Number of Key
    4 keys per lock
  • 6421 LF WCS 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
    Not Included
    Custom Marking
    Laser engraved in 4 areas
    Number of Key
    3 keys per lock
Showing 26901 - 26950 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