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Master Lock 6840 Solid Brass Pro Series Rekeyable Padlocks 1-3/4" (44mm)

  • 6840 MK CN W15 NOKEY LZ4

    6840 MK CN W15 NOKEY LZ4

    $29.64 42% Off

    Number of Key
    0 keys per lock
    Cylinder Type
    5-Pin W15
    Bump Stop
    Not Included
    Shackle Length
    1-3/16" Boron
    Chain
    Sash Chain
    Function
    Non-Key Retaining
    Custom Marking
    Laser engraved in 4 areas
    More Details

  • 6840 N KD CN W7000NISI 4KEY LZ2

    6840 N KD CN W7000NISI 4KEY LZ2

    $27.60 42% Off

    Number of Key
    4 keys per lock
    Cylinder Type
    6-Pin W7000 with Nickel Silver Key
    Bump Stop
    Included
    Keying
    Keyed Different
    Shackle Length
    1-3/16" Boron
    Chain
    Sash Chain
    Function
    Non-Key Retaining
    Custom Marking
    Laser engraved in 2 areas
    More Details

  • 6840 KD LJ CN WP6 LZ3

    6840 KD LJ CN WP6 LZ3

    $32.55 42% Off

    Number of Key
    2 keys per lock
    Cylinder Type
    Edge Key Control 6-Pin
    Bump Stop
    Not Included
    Keying
    Keyed Different
    Shackle Length
    2-7/16" Boron
    Chain
    Sash Chain
    Function
    Non-Key Retaining
    Custom Marking
    Laser engraved in 3 areas
    More Details

  • 6840 N KD CN NR W15 LZ3

    6840 N KD CN NR W15 LZ3

    $25.93 42% Off

    Number of Key
    2 keys per lock
    Cylinder Type
    5-Pin W15
    Bump Stop
    Included
    Keying
    Keyed Different
    Shackle Length
    1-3/16" Boron
    Chain
    Sash Chain
    Function
    Non-Removable Key
    Custom Marking
    Laser engraved in 3 areas
    More Details

  • 6840 N KAMK CN NR WP4 3KEY LZ4

    6840 N KAMK CN NR WP4 3KEY LZ4

    $39.67 42% Off

    Number of Key
    3 keys per lock
    Cylinder Type
    Edge Key Control 4-Pin
    Bump Stop
    Included
    Shackle Length
    1-3/16" Boron
    Chain
    Sash Chain
    Function
    Non-Removable Key
    Custom Marking
    Laser engraved in 4 areas
    More Details

  • 6840 MK CN NR W1 4KEY LZ3

    6840 MK CN NR W1 4KEY LZ3

    $30.73 42% Off

    Number of Key
    4 keys per lock
    Cylinder Type
    4-Pin W1
    Bump Stop
    Not Included
    Shackle Length
    1-3/16" Boron
    Chain
    Sash Chain
    Function
    Non-Removable Key
    Custom Marking
    Laser engraved in 3 areas
    More Details

  • 6840 MK CN NR W15 3KEY LZ1

    6840 MK CN NR W15 3KEY LZ1

    $26.99 42% Off

    Number of Key
    3 keys per lock
    Cylinder Type
    5-Pin W15
    Bump Stop
    Not Included
    Shackle Length
    1-3/16" Boron
    Chain
    Sash Chain
    Function
    Non-Removable Key
    Custom Marking
    Laser engraved in 1 area
    More Details

  • 6840 KAMK LJ NR W17 NOKEY LZ2

    6840 KAMK LJ NR W17 NOKEY LZ2

    $26.67 42% Off

    Number of Key
    0 keys per lock
    Cylinder Type
    5-Pin W17
    Bump Stop
    Not Included
    Shackle Length
    2-7/16" Boron
    Chain
    Not Included
    Function
    Non-Removable Key
    Custom Marking
    Laser engraved in 2 areas
    More Details

  • 6840 KAMK LJ NR W81 3KEY LZ3

    6840 KAMK LJ NR W81 3KEY LZ3

    $29.14 42% Off

    Number of Key
    3 keys per lock
    Cylinder Type
    5-Pin W81
    Bump Stop
    Not Included
    Shackle Length
    2-7/16" Boron
    Chain
    Not Included
    Function
    Non-Removable Key
    Custom Marking
    Laser engraved in 3 areas
    More Details

  • 6840 N KD LF NR W1 4KEY LZ3

    6840 N KD LF NR W1 4KEY LZ3

    $27.14 42% Off

    Number of Key
    4 keys per lock
    Cylinder Type
    4-Pin W1
    Bump Stop
    Included
    Keying
    Keyed Different
    Shackle Length
    1-9/16" Boron
    Chain
    Not Included
    Function
    Non-Removable Key
    Custom Marking
    Laser engraved in 3 areas
    More Details

  • 6840 N KAMK LF CN NR W27 NOKEY LZ3

    6840 N KAMK LF CN NR W27 NOKEY LZ3

    $31.10 42% Off

    Number of Key
    0 keys per lock
    Cylinder Type
    5-Pin W27
    Bump Stop
    Included
    Shackle Length
    1-9/16" Boron
    Chain
    Sash Chain
    Function
    Non-Removable Key
    Custom Marking
    Laser engraved in 3 areas
    More Details

  • 6840 N KAMK LJ W1 1KEY LZ1

    6840 N KAMK LJ W1 1KEY LZ1

    $26.04 42% Off

    Number of Key
    1 key per lock
    Cylinder Type
    4-Pin W1
    Bump Stop
    Included
    Shackle Length
    2-7/16" Boron
    Chain
    Not Included
    Function
    Non-Key Retaining
    Custom Marking
    Laser engraved in 1 area
    More Details

  • 6840 N KAMK LJ W7000 LZ2

    6840 N KAMK LJ W7000 LZ2

    $27.32 42% Off

    Number of Key
    2 keys per lock
    Cylinder Type
    6-Pin W7000
    Bump Stop
    Included
    Shackle Length
    2-7/16" Boron
    Chain
    Not Included
    Function
    Non-Key Retaining
    Custom Marking
    Laser engraved in 2 areas
    More Details

  • 6840 N KD LF CN WP4 1KEY LZ4

    6840 N KD LF CN WP4 1KEY LZ4

    $33.27 42% Off

    Number of Key
    1 key per lock
    Cylinder Type
    Edge Key Control 4-Pin
    Bump Stop
    Included
    Keying
    Keyed Different
    Shackle Length
    1-9/16" Boron
    Chain
    Sash Chain
    Function
    Non-Key Retaining
    Custom Marking
    Laser engraved in 4 areas
    More Details

  • 6840 N KAMK LJ CN W7000 LZ4

    6840 N KAMK LJ CN W7000 LZ4

    $32.42 42% Off

    Number of Key
    2 keys per lock
    Cylinder Type
    6-Pin W7000
    Bump Stop
    Included
    Shackle Length
    2-7/16" Boron
    Chain
    Sash Chain
    Function
    Non-Key Retaining
    Custom Marking
    Laser engraved in 4 areas
    More Details

  • 6840 N KAMK LJ CN NR W17 4KEY LZ2

    6840 N KAMK LJ CN NR W17 4KEY LZ2

    $32.23 42% Off

    Number of Key
    4 keys per lock
    Cylinder Type
    5-Pin W17
    Bump Stop
    Included
    Shackle Length
    2-7/16" Boron
    Chain
    Sash Chain
    Function
    Non-Removable Key
    Custom Marking
    Laser engraved in 2 areas
    More Details

  • 6840 N W15 4KEY LZ3

    6840 N W15 4KEY LZ3

    $25.74 42% Off

    Number of Key
    4 keys per lock
    Cylinder Type
    5-Pin W15
    Bump Stop
    Included
    Keying
    Not Included
    Shackle Length
    1-3/16" Boron
    Chain
    Not Included
    Function
    Non-Key Retaining
    Custom Marking
    Laser engraved in 3 areas
    More Details

  • 6840 N KD LF CN NR WP4 3KEY LZ2

    6840 N KD LF CN NR WP4 3KEY LZ2

    $34.74 42% Off

    Number of Key
    3 keys per lock
    Cylinder Type
    Edge Key Control 4-Pin
    Bump Stop
    Included
    Keying
    Keyed Different
    Shackle Length
    1-9/16" Boron
    Chain
    Sash Chain
    Function
    Non-Removable Key
    Custom Marking
    Laser engraved in 2 areas
    More Details

  • 6840 KD NR W17 3KEY

    6840 KD NR W17 3KEY

    $20.08 42% Off

    Number of Key
    3 keys per lock
    Cylinder Type
    5-Pin W17
    Bump Stop
    Not Included
    Keying
    Keyed Different
    Shackle Length
    1-3/16" Boron
    Chain
    Not Included
    Function
    Non-Removable Key
    Custom Marking
    Not Included
    More Details

  • 6840 KA NR W1 4KEY LZ2

    6840 KA NR W1 4KEY LZ2

    $24.49 42% Off

    Number of Key
    4 keys per lock
    Cylinder Type
    4-Pin W1
    Bump Stop
    Not Included
    Keying
    Keyed Alike
    Shackle Length
    1-3/16" Boron
    Chain
    Not Included
    Function
    Non-Removable Key
    Custom Marking
    Laser engraved in 2 areas
    More Details

  • 6840 N NR W15 NOKEY LZ3

    6840 N NR W15 NOKEY LZ3

    $23.38 42% Off

    Number of Key
    0 keys per lock
    Cylinder Type
    5-Pin W15
    Bump Stop
    Included
    Keying
    Not Included
    Shackle Length
    1-3/16" Boron
    Chain
    Not Included
    Function
    Non-Removable Key
    Custom Marking
    Laser engraved in 3 areas
    More Details

  • 6840 KD CN W17

    6840 KD CN W17

    $21.45 42% Off

    Number of Key
    2 keys per lock
    Cylinder Type
    5-Pin W17
    Bump Stop
    Not Included
    Keying
    Keyed Different
    Shackle Length
    1-3/16" Boron
    Chain
    Sash Chain
    Function
    Non-Key Retaining
    Custom Marking
    Not Included
    More Details

  • 6840 KD CN NR W1 3KEY

    6840 KD CN NR W1 3KEY

    $22.63 42% Off

    Number of Key
    3 keys per lock
    Cylinder Type
    4-Pin W1
    Bump Stop
    Not Included
    Keying
    Keyed Different
    Shackle Length
    1-3/16" Boron
    Chain
    Sash Chain
    Function
    Non-Removable Key
    Custom Marking
    Not Included
    More Details

  • 6840 N CN W15 4KEY LZ3

    6840 N CN W15 4KEY LZ3

    $28.29 42% Off

    Number of Key
    4 keys per lock
    Cylinder Type
    5-Pin W15
    Bump Stop
    Included
    Keying
    Not Included
    Shackle Length
    1-3/16" Boron
    Chain
    Sash Chain
    Function
    Non-Key Retaining
    Custom Marking
    Laser engraved in 3 areas
    More Details

  • 6840 KD W15 4KEY LZ4

    6840 KD W15 4KEY LZ4

    $26.37 42% Off

    Number of Key
    4 keys per lock
    Cylinder Type
    5-Pin W15
    Bump Stop
    Not Included
    Keying
    Keyed Different
    Shackle Length
    1-3/16" Boron
    Chain
    Not Included
    Function
    Non-Key Retaining
    Custom Marking
    Laser engraved in 4 areas
    More Details

  • 6840 N CN NR W1 4KEY LZ2

    6840 N CN NR W1 4KEY LZ2

    $27.01 42% Off

    Number of Key
    4 keys per lock
    Cylinder Type
    4-Pin W1
    Bump Stop
    Included
    Keying
    Not Included
    Shackle Length
    1-3/16" Boron
    Chain
    Sash Chain
    Function
    Non-Removable Key
    Custom Marking
    Laser engraved in 2 areas
    More Details

  • 6840 N CN NR W7000 LZ1

    6840 N CN NR W7000 LZ1

    $23.37 42% Off

    Number of Key
    2 keys per lock
    Cylinder Type
    6-Pin W7000
    Bump Stop
    Included
    Keying
    Not Included
    Shackle Length
    1-3/16" Boron
    Chain
    Sash Chain
    Function
    Non-Removable Key
    Custom Marking
    Laser engraved in 1 area
    More Details

  • 6840 MK LF CN W15 NOKEY LZ1

    6840 MK LF CN W15 NOKEY LZ1

    $27.20 42% Off

    Number of Key
    0 keys per lock
    Cylinder Type
    5-Pin W15
    Bump Stop
    Not Included
    Shackle Length
    1-9/16" Boron
    Chain
    Sash Chain
    Function
    Non-Key Retaining
    Custom Marking
    Laser engraved in 1 area
    More Details

  • 6840 N KD LJ NR W81 4KEY LZ2

    6840 N KD LJ NR W81 4KEY LZ2

    $25.91 42% Off

    Number of Key
    4 keys per lock
    Cylinder Type
    5-Pin W81
    Bump Stop
    Included
    Keying
    Keyed Different
    Shackle Length
    2-7/16" Boron
    Chain
    Not Included
    Function
    Non-Removable Key
    Custom Marking
    Laser engraved in 2 areas
    More Details

  • 6840 N KD LJ NR WP4 3KEY LZ1

    6840 N KD LJ NR WP4 3KEY LZ1

    $30.97 42% Off

    Number of Key
    3 keys per lock
    Cylinder Type
    Edge Key Control 4-Pin
    Bump Stop
    Included
    Keying
    Keyed Different
    Shackle Length
    2-7/16" Boron
    Chain
    Not Included
    Function
    Non-Removable Key
    Custom Marking
    Laser engraved in 1 area
    More Details

  • 6840 N LF W15 NOKEY LZ1

    6840 N LF W15 NOKEY LZ1

    $22.22 42% Off

    Number of Key
    0 keys per lock
    Cylinder Type
    5-Pin W15
    Bump Stop
    Included
    Keying
    Not Included
    Shackle Length
    1-9/16" Boron
    Chain
    Not Included
    Function
    Non-Key Retaining
    Custom Marking
    Laser engraved in 1 area
    More Details

  • 6840 MK CN W81

    6840 MK CN W81

    $24.53 42% Off

    Number of Key
    2 keys per lock
    Cylinder Type
    5-Pin W81
    Bump Stop
    Not Included
    Shackle Length
    1-3/16" Boron
    Chain
    Sash Chain
    Function
    Non-Key Retaining
    Custom Marking
    Not Included
    More Details

  • 6840 KA W27 4KEY

    6840 KA W27 4KEY

    $21.94 42% Off

    Number of Key
    4 keys per lock
    Cylinder Type
    5-Pin W27
    Bump Stop
    Not Included
    Keying
    Keyed Alike
    Shackle Length
    1-3/16" Boron
    Chain
    Not Included
    Function
    Non-Key Retaining
    Custom Marking
    Not Included
    More Details

  • 6840 WP4 LZ4

    6840 WP4 LZ4

    $29.82 42% Off

    Number of Key
    2 keys per lock
    Cylinder Type
    Edge Key Control 4-Pin
    Bump Stop
    Not Included
    Keying
    Not Included
    Shackle Length
    1-3/16" Boron
    Chain
    Not Included
    Function
    Non-Key Retaining
    Custom Marking
    Laser engraved in 4 areas
    More Details

  • 6840 MK LF CN WP6 4KEY LZ1

    6840 MK LF CN WP6 4KEY LZ1

    $38.78 42% Off

    Number of Key
    4 keys per lock
    Cylinder Type
    Edge Key Control 6-Pin
    Bump Stop
    Not Included
    Shackle Length
    1-9/16" Boron
    Chain
    Sash Chain
    Function
    Non-Key Retaining
    Custom Marking
    Laser engraved in 1 area
    More Details

  • 6840 N LF CN W81 LZ1

    6840 N LF CN W81 LZ1

    $24.77 42% Off

    Number of Key
    2 keys per lock
    Cylinder Type
    5-Pin W81
    Bump Stop
    Included
    Keying
    Not Included
    Shackle Length
    1-9/16" Boron
    Chain
    Sash Chain
    Function
    Non-Key Retaining
    Custom Marking
    Laser engraved in 1 area
    More Details

  • 6840 KD NR W17 3KEY LZ3

    6840 KD NR W17 3KEY LZ3

    $23.92 42% Off

    Number of Key
    3 keys per lock
    Cylinder Type
    5-Pin W17
    Bump Stop
    Not Included
    Keying
    Keyed Different
    Shackle Length
    1-3/16" Boron
    Chain
    Not Included
    Function
    Non-Removable Key
    Custom Marking
    Laser engraved in 3 areas
    More Details

  • 6840 KA CN W81 3KEY LZ2

    6840 KA CN W81 3KEY LZ2

    $25.86 42% Off

    Number of Key
    3 keys per lock
    Cylinder Type
    5-Pin W81
    Bump Stop
    Not Included
    Keying
    Keyed Alike
    Shackle Length
    1-3/16" Boron
    Chain
    Sash Chain
    Function
    Non-Key Retaining
    Custom Marking
    Laser engraved in 2 areas
    More Details

  • 6840 KAMK LF CN WCS 1KEY

    6840 KAMK LF CN WCS 1KEY

    $23.45 42% Off

    Number of Key
    1 key per lock
    Cylinder Type
    Lock Body Only
    Bump Stop
    Not Included
    Shackle Length
    1-9/16" Boron
    Chain
    Sash Chain
    Function
    Non-Key Retaining
    Custom Marking
    Not Included
    More Details

  • 6840 KD NR W81 NOKEY LZ1

    6840 KD NR W81 NOKEY LZ1

    $20.17 42% Off

    Number of Key
    0 keys per lock
    Cylinder Type
    5-Pin W81
    Bump Stop
    Not Included
    Keying
    Keyed Different
    Shackle Length
    1-3/16" Boron
    Chain
    Not Included
    Function
    Non-Removable Key
    Custom Marking
    Laser engraved in 1 area
    More Details

  • 6840 N LF CN NR W7000 NOKEY LZ2

    6840 N LF CN NR W7000 NOKEY LZ2

    $26.04 42% Off

    Number of Key
    0 keys per lock
    Cylinder Type
    6-Pin W7000
    Bump Stop
    Included
    Keying
    Not Included
    Shackle Length
    1-9/16" Boron
    Chain
    Sash Chain
    Function
    Non-Removable Key
    Custom Marking
    Laser engraved in 2 areas
    More Details

  • 6840 N LJ CN W17 4KEY

    6840 N LJ CN W17 4KEY

    $25.91 42% Off

    Number of Key
    4 keys per lock
    Cylinder Type
    5-Pin W17
    Bump Stop
    Included
    Keying
    Not Included
    Shackle Length
    2-7/16" Boron
    Chain
    Sash Chain
    Function
    Non-Key Retaining
    Custom Marking
    Not Included
    More Details

  • 6840 KA CN WP6 3KEY LZ4

    6840 KA CN WP6 3KEY LZ4

    $35.93 42% Off

    Number of Key
    3 keys per lock
    Cylinder Type
    Edge Key Control 6-Pin
    Bump Stop
    Not Included
    Keying
    Keyed Alike
    Shackle Length
    1-3/16" Boron
    Chain
    Sash Chain
    Function
    Non-Key Retaining
    Custom Marking
    Laser engraved in 4 areas
    More Details

  • 6840 NR W17 4KEY LZ4

    6840 NR W17 4KEY LZ4

    $26.37 42% Off

    Number of Key
    4 keys per lock
    Cylinder Type
    5-Pin W17
    Bump Stop
    Not Included
    Keying
    Not Included
    Shackle Length
    1-3/16" Boron
    Chain
    Not Included
    Function
    Non-Removable Key
    Custom Marking
    Laser engraved in 4 areas
    More Details

  • 6840 N LJ W1 4KEY LZ2

    6840 N LJ W1 4KEY LZ2

    $25.91 42% Off

    Number of Key
    4 keys per lock
    Cylinder Type
    4-Pin W1
    Bump Stop
    Included
    Keying
    Not Included
    Shackle Length
    2-7/16" Boron
    Chain
    Not Included
    Function
    Non-Key Retaining
    Custom Marking
    Laser engraved in 2 areas
    More Details

  • 6840 KD CN 4KEY LZ4

    6840 KD CN 4KEY LZ4

    $28.92 42% Off

    Number of Key
    4 keys per lock
    Cylinder Type
    5-Pin W6000
    Bump Stop
    Not Included
    Keying
    Keyed Different
    Shackle Length
    1-3/16" Boron
    Chain
    Sash Chain
    Function
    Non-Key Retaining
    Custom Marking
    Laser engraved in 4 areas
    More Details

  • 6840 MK LJ 4KEY LZ4

    6840 MK LJ 4KEY LZ4

    $30.90 42% Off

    Number of Key
    4 keys per lock
    Cylinder Type
    5-Pin W6000
    Bump Stop
    Not Included
    Shackle Length
    2-7/16" Boron
    Chain
    Not Included
    Function
    Non-Key Retaining
    Custom Marking
    Laser engraved in 4 areas
    More Details

  • 6840 N KA NR W1 4KEY LZ4

    6840 N KA NR W1 4KEY LZ4

    $27.70 42% Off

    Number of Key
    4 keys per lock
    Cylinder Type
    4-Pin W1
    Bump Stop
    Included
    Keying
    Keyed Alike
    Shackle Length
    1-3/16" Boron
    Chain
    Not Included
    Function
    Non-Removable Key
    Custom Marking
    Laser engraved in 4 areas
    More Details

  • 6840 N LJ CN W7000NISI 4KEY LZ4

    6840 N LJ CN W7000NISI 4KEY LZ4

    $31.61 42% Off

    Number of Key
    4 keys per lock
    Cylinder Type
    6-Pin W7000 with Nickel Silver Key
    Bump Stop
    Included
    Keying
    Not Included
    Shackle Length
    2-7/16" Boron
    Chain
    Sash Chain
    Function
    Non-Key Retaining
    Custom Marking
    Laser engraved in 4 areas
    More Details

  • 6840 KA CN NR WP6 1KEY LZ2

    6840 KA CN NR WP6 1KEY LZ2

    $29.34 42% Off

    Number of Key
    1 key per lock
    Cylinder Type
    Edge Key Control 6-Pin
    Bump Stop
    Not Included
    Keying
    Keyed Alike
    Shackle Length
    1-3/16" Boron
    Chain
    Sash Chain
    Function
    Non-Removable Key
    Custom Marking
    Laser engraved in 2 areas
    More Details
Showing 201 - 250 of 31560 items

Product Features

Best used near water, or in other applications that take advantage of brass's corrosion-resistant properties. Switch out the cylinder almost instantly thanks to Master Lock's removable cylinder design and save money on costly lock replacements.

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  • Dimensions
    • Body Width: 1-3/4" (44mm)
    • Shackle Diameter: 3/8" (9mm)
    • Vertical Clearance: 1-3/16", 1-9/16", 2-7/16", 5-5/8" (30mm, 40mm, 61mm, 143mm)
    • Horizontal Clearance = 29/32" (23mm)

All orders must be in increments of 6