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Master Lock 6621 Pro Series Key-in-Knob Padlock - Weather Tough

  • 6621 NR LJ WCS6 LZ1 3KEY

    6621 NR LJ WCS6 LZ1 3KEY

    $25.60 40% Off

    Function
    Non-Removable Key
    Shackle Length
    2-1/2" Boron
    Chain
    Not Included
    Cylinder Type
    Lock Body Only
    Number of Pins
    6 Pins
    Keying
    Not Included
    Custom Marking
    Laser engraved in 1 area
    Number of Key
    3 keys per lock
    More Details

  • 6621 LJ CN D045 KD

    6621 LJ CN D045 KD

    $33.38 40% Off

    Function
    Non-Key Retaining
    Shackle Length
    2-1/2" Boron
    Chain
    Sash Chain
    Cylinder Type
    Schlage C
    Number of Pins
    5 Pins
    Keying
    Keyed Different
    Custom Marking
    Not Included
    Number of Key
    Not Included
    More Details

  • 6621 NR LJ WCS6 LZ4 4KEY

    6621 NR LJ WCS6 LZ4 4KEY

    $30.82 40% Off

    Function
    Non-Removable Key
    Shackle Length
    2-1/2" Boron
    Chain
    Not Included
    Cylinder Type
    Lock Body Only
    Number of Pins
    6 Pins
    Keying
    Not Included
    Custom Marking
    Laser engraved in 4 areas
    Number of Key
    4 keys per lock
    More Details

  • 6621 NR LJ WCS6 KAMK LZ2 1KEY

    6621 NR LJ WCS6 KAMK LZ2 1KEY

    $28.43 40% Off

    Function
    Non-Removable Key
    Shackle Length
    2-1/2" Boron
    Chain
    Not Included
    Cylinder Type
    Lock Body Only
    Number of Pins
    6 Pins
    Custom Marking
    Laser engraved in 2 areas
    Number of Key
    1 key per lock
    More Details

  • 6621 NR WCS5 MK 4KEY

    6621 NR WCS5 MK 4KEY

    $24.77 40% Off

    Function
    Non-Removable Key
    Shackle Length
    1-1/8" Boron
    Chain
    Not Included
    Cylinder Type
    Lock Body Only
    Number of Pins
    5 Pins
    Custom Marking
    Not Included
    Number of Key
    4 keys per lock
    More Details

  • 6621 CN D12 KD LZ2

    6621 CN D12 KD LZ2

    $34.48 40% Off

    Function
    Non-Key Retaining
    Shackle Length
    1-1/8" Boron
    Chain
    Sash Chain
    Cylinder Type
    Kwikset
    Number of Pins
    Not Included
    Keying
    Keyed Different
    Custom Marking
    Laser engraved in 2 areas
    Number of Key
    Not Included
    More Details

  • 6621 NR CN D125 MK LZ4 3KEY

    6621 NR CN D125 MK LZ4 3KEY

    $40.26 40% Off

    Function
    Non-Removable Key
    Shackle Length
    1-1/8" Boron
    Chain
    Sash Chain
    Cylinder Type
    Kwikset
    Number of Pins
    5 Pins
    Custom Marking
    Laser engraved in 4 areas
    Number of Key
    3 keys per lock
    More Details

  • 6621 NR LF D035 KAMK NOKEY

    6621 NR LF D035 KAMK NOKEY

    $33.32 40% Off

    Function
    Non-Removable Key
    Shackle Length
    1-1/2" Boron
    Chain
    Not Included
    Cylinder Type
    Yale 8
    Number of Pins
    5 Pins
    Custom Marking
    Not Included
    Number of Key
    0 keys per lock
    More Details

  • 6621 NR CN D03 KA LZ1

    6621 NR CN D03 KA LZ1

    $33.98 40% Off

    Function
    Non-Removable Key
    Shackle Length
    1-1/8" Boron
    Chain
    Sash Chain
    Cylinder Type
    Yale 8
    Number of Pins
    Not Included
    Keying
    Keyed Alike
    Custom Marking
    Laser engraved in 1 area
    Number of Key
    Not Included
    More Details

  • 6621 NR CN D035 KA LZ1 1KEY

    6621 NR CN D035 KA LZ1 1KEY

    $33.98 40% Off

    Function
    Non-Removable Key
    Shackle Length
    1-1/8" Boron
    Chain
    Sash Chain
    Cylinder Type
    Yale 8
    Number of Pins
    5 Pins
    Keying
    Keyed Alike
    Custom Marking
    Laser engraved in 1 area
    Number of Key
    1 key per lock
    More Details

  • 6621 LJ D12 LZ1 1KEY

    6621 LJ D12 LZ1 1KEY

    $32.04 40% Off

    Function
    Non-Key Retaining
    Shackle Length
    2-1/2" Boron
    Chain
    Not Included
    Cylinder Type
    Kwikset
    Number of Pins
    Not Included
    Keying
    Not Included
    Custom Marking
    Laser engraved in 1 area
    Number of Key
    1 key per lock
    More Details

  • 6621 NR LJ WCS6 KA 3KEY

    6621 NR LJ WCS6 KA 3KEY

    $25.11 40% Off

    Function
    Non-Removable Key
    Shackle Length
    2-1/2" Boron
    Chain
    Not Included
    Cylinder Type
    Lock Body Only
    Number of Pins
    6 Pins
    Keying
    Keyed Alike
    Custom Marking
    Not Included
    Number of Key
    3 keys per lock
    More Details

  • 6621 CN D03 MK LZ3

    6621 CN D03 MK LZ3

    $37.70 40% Off

    Function
    Non-Key Retaining
    Shackle Length
    1-1/8" Boron
    Chain
    Sash Chain
    Cylinder Type
    Yale 8
    Number of Pins
    Not Included
    Custom Marking
    Laser engraved in 3 areas
    Number of Key
    Not Included
    More Details

  • 6621 LJ D12 MK LZ4 NOKEY

    6621 LJ D12 MK LZ4 NOKEY

    $37.92 40% Off

    Function
    Non-Key Retaining
    Shackle Length
    2-1/2" Boron
    Chain
    Not Included
    Cylinder Type
    Kwikset
    Number of Pins
    Not Included
    Custom Marking
    Laser engraved in 4 areas
    Number of Key
    0 keys per lock
    More Details

  • 6621 NR CN WCS KA LZ1 NOKEY

    6621 NR CN WCS KA LZ1 NOKEY

    $25.25 40% Off

    Function
    Non-Removable Key
    Shackle Length
    1-1/8" Boron
    Chain
    Sash Chain
    Cylinder Type
    Lock Body Only
    Number of Pins
    Not Included
    Keying
    Keyed Alike
    Custom Marking
    Laser engraved in 1 area
    Number of Key
    0 keys per lock
    More Details

  • 6621 LJ D125 KAMK LZ4 3KEY

    6621 LJ D125 KAMK LZ4 3KEY

    $40.00 40% Off

    Function
    Non-Key Retaining
    Shackle Length
    2-1/2" Boron
    Chain
    Not Included
    Cylinder Type
    Kwikset
    Number of Pins
    5 Pins
    Custom Marking
    Laser engraved in 4 areas
    Number of Key
    3 keys per lock
    More Details

  • 6621 NR LJ CN D03 MK LZ4 4KEY

    6621 NR LJ CN D03 MK LZ4 4KEY

    $43.06 40% Off

    Function
    Non-Removable Key
    Shackle Length
    2-1/2" Boron
    Chain
    Sash Chain
    Cylinder Type
    Yale 8
    Number of Pins
    Not Included
    Custom Marking
    Laser engraved in 4 areas
    Number of Key
    4 keys per lock
    More Details

  • 6621 LJ D035 KAMK LZ2 1KEY

    6621 LJ D035 KAMK LZ2 1KEY

    $36.11 40% Off

    Function
    Non-Key Retaining
    Shackle Length
    2-1/2" Boron
    Chain
    Not Included
    Cylinder Type
    Yale 8
    Number of Pins
    5 Pins
    Custom Marking
    Laser engraved in 2 areas
    Number of Key
    1 key per lock
    More Details

  • 6621 LJ D036 LZ4 4KEY

    6621 LJ D036 LZ4 4KEY

    $39.55 40% Off

    Function
    Non-Key Retaining
    Shackle Length
    2-1/2" Boron
    Chain
    Not Included
    Cylinder Type
    Yale 8
    Number of Pins
    6 Pins
    Keying
    Not Included
    Custom Marking
    Laser engraved in 4 areas
    Number of Key
    4 keys per lock
    More Details

  • 6621 CN WCS6 KD LZ4 1KEY

    6621 CN WCS6 KD LZ4 1KEY

    $29.45 40% Off

    Function
    Non-Key Retaining
    Shackle Length
    1-1/8" Boron
    Chain
    Sash Chain
    Cylinder Type
    Lock Body Only
    Number of Pins
    6 Pins
    Keying
    Keyed Different
    Custom Marking
    Laser engraved in 4 areas
    Number of Key
    1 key per lock
    More Details

  • 6621 CN WCS6 KA LZ4 NOKEY

    6621 CN WCS6 KA LZ4 NOKEY

    $30.29 40% Off

    Function
    Non-Key Retaining
    Shackle Length
    1-1/8" Boron
    Chain
    Sash Chain
    Cylinder Type
    Lock Body Only
    Number of Pins
    6 Pins
    Keying
    Keyed Alike
    Custom Marking
    Laser engraved in 4 areas
    Number of Key
    0 keys per lock
    More Details

  • 6621 NR LJ CN WCS6 MK LZ2

    6621 NR LJ CN WCS6 MK LZ2

    $30.26 40% Off

    Function
    Non-Removable Key
    Shackle Length
    2-1/2" Boron
    Chain
    Sash Chain
    Cylinder Type
    Lock Body Only
    Number of Pins
    6 Pins
    Custom Marking
    Laser engraved in 2 areas
    Number of Key
    Not Included
    More Details

  • 6621 LF D046 LZ1 1KEY

    6621 LF D046 LZ1 1KEY

    $32.97 40% Off

    Function
    Non-Key Retaining
    Shackle Length
    1-1/2" Boron
    Chain
    Not Included
    Cylinder Type
    Schlage C
    Number of Pins
    6 Pins
    Keying
    Not Included
    Custom Marking
    Laser engraved in 1 area
    Number of Key
    1 key per lock
    More Details

  • 6621 LJ CN D046 LZ1 4KEY

    6621 LJ CN D046 LZ1 4KEY

    $38.23 40% Off

    Function
    Non-Key Retaining
    Shackle Length
    2-1/2" Boron
    Chain
    Sash Chain
    Cylinder Type
    Schlage C
    Number of Pins
    6 Pins
    Keying
    Not Included
    Custom Marking
    Laser engraved in 1 area
    Number of Key
    4 keys per lock
    More Details

  • 6621 LJ CN D125 KA LZ4 NOKEY

    6621 LJ CN D125 KA LZ4 NOKEY

    $39.54 40% Off

    Function
    Non-Key Retaining
    Shackle Length
    2-1/2" Boron
    Chain
    Sash Chain
    Cylinder Type
    Kwikset
    Number of Pins
    5 Pins
    Keying
    Keyed Alike
    Custom Marking
    Laser engraved in 4 areas
    Number of Key
    0 keys per lock
    More Details

  • 6621 LJ CN D125 KAMK LZ2 3KEY

    6621 LJ CN D125 KAMK LZ2 3KEY

    $40.02 40% Off

    Function
    Non-Key Retaining
    Shackle Length
    2-1/2" Boron
    Chain
    Sash Chain
    Cylinder Type
    Kwikset
    Number of Pins
    5 Pins
    Custom Marking
    Laser engraved in 2 areas
    Number of Key
    3 keys per lock
    More Details

  • 6621 LF D125 MK LZ3 3KEY

    6621 LF D125 MK LZ3 3KEY

    $37.72 40% Off

    Function
    Non-Key Retaining
    Shackle Length
    1-1/2" Boron
    Chain
    Not Included
    Cylinder Type
    Kwikset
    Number of Pins
    5 Pins
    Custom Marking
    Laser engraved in 3 areas
    Number of Key
    3 keys per lock
    More Details

  • 6621 LJ CN D035 KA LZ3 NOKEY

    6621 LJ CN D035 KA LZ3 NOKEY

    $38.22 40% Off

    Function
    Non-Key Retaining
    Shackle Length
    2-1/2" Boron
    Chain
    Sash Chain
    Cylinder Type
    Yale 8
    Number of Pins
    5 Pins
    Keying
    Keyed Alike
    Custom Marking
    Laser engraved in 3 areas
    Number of Key
    0 keys per lock
    More Details

  • 6621 LF D03 MK LZ4 4KEY

    6621 LF D03 MK LZ4 4KEY

    $40.27 40% Off

    Function
    Non-Key Retaining
    Shackle Length
    1-1/2" Boron
    Chain
    Not Included
    Cylinder Type
    Yale 8
    Number of Pins
    Not Included
    Custom Marking
    Laser engraved in 4 areas
    Number of Key
    4 keys per lock
    More Details

  • 6621 LF D03 KAMK LZ2 NOKEY

    6621 LF D03 KAMK LZ2 NOKEY

    $35.99 40% Off

    Function
    Non-Key Retaining
    Shackle Length
    1-1/2" Boron
    Chain
    Not Included
    Cylinder Type
    Yale 8
    Number of Pins
    Not Included
    Custom Marking
    Laser engraved in 2 areas
    Number of Key
    0 keys per lock
    More Details

  • 6621 LJ CN D035 KAMK LZ4 3KEY

    6621 LJ CN D035 KAMK LZ4 3KEY

    $42.67 40% Off

    Function
    Non-Key Retaining
    Shackle Length
    2-1/2" Boron
    Chain
    Sash Chain
    Cylinder Type
    Yale 8
    Number of Pins
    5 Pins
    Custom Marking
    Laser engraved in 4 areas
    Number of Key
    3 keys per lock
    More Details

  • 6621 LF D035 KAMK LZ3 4KEY

    6621 LF D035 KAMK LZ3 4KEY

    $39.79 40% Off

    Function
    Non-Key Retaining
    Shackle Length
    1-1/2" Boron
    Chain
    Not Included
    Cylinder Type
    Yale 8
    Number of Pins
    5 Pins
    Custom Marking
    Laser engraved in 3 areas
    Number of Key
    4 keys per lock
    More Details

  • 6621 NR LF CN D03 LZ2 NOKEY

    6621 NR LF CN D03 LZ2 NOKEY

    $35.93 40% Off

    Function
    Non-Removable Key
    Shackle Length
    1-1/2" Boron
    Chain
    Sash Chain
    Cylinder Type
    Yale 8
    Number of Pins
    Not Included
    Keying
    Not Included
    Custom Marking
    Laser engraved in 2 areas
    Number of Key
    0 keys per lock
    More Details

  • 6621 NR LF CN D03 KD LZ2

    6621 NR LF CN D03 KD LZ2

    $35.93 40% Off

    Function
    Non-Removable Key
    Shackle Length
    1-1/2" Boron
    Chain
    Sash Chain
    Cylinder Type
    Yale 8
    Number of Pins
    Not Included
    Keying
    Keyed Different
    Custom Marking
    Laser engraved in 2 areas
    Number of Key
    Not Included
    More Details

  • 6621 NR LF CN D03 KA LZ1 3KEY

    6621 NR LF CN D03 KA LZ1 3KEY

    $36.67 40% Off

    Function
    Non-Removable Key
    Shackle Length
    1-1/2" Boron
    Chain
    Sash Chain
    Cylinder Type
    Yale 8
    Number of Pins
    Not Included
    Keying
    Keyed Alike
    Custom Marking
    Laser engraved in 1 area
    Number of Key
    3 keys per lock
    More Details

  • 6621 NR LF CN D035 LZ1 4KEY

    6621 NR LF CN D035 LZ1 4KEY

    $37.06 40% Off

    Function
    Non-Removable Key
    Shackle Length
    1-1/2" Boron
    Chain
    Sash Chain
    Cylinder Type
    Yale 8
    Number of Pins
    5 Pins
    Keying
    Not Included
    Custom Marking
    Laser engraved in 1 area
    Number of Key
    4 keys per lock
    More Details

  • 6621 NR D12 LZ4

    6621 NR D12 LZ4

    $34.46 40% Off

    Function
    Non-Removable Key
    Shackle Length
    1-1/8" Boron
    Chain
    Not Included
    Cylinder Type
    Kwikset
    Number of Pins
    Not Included
    Keying
    Not Included
    Custom Marking
    Laser engraved in 4 areas
    Number of Key
    Not Included
    More Details

  • 6621 D046 KD LZ1 NOKEY

    6621 D046 KD LZ1 NOKEY

    $31.52 40% Off

    Function
    Non-Key Retaining
    Shackle Length
    1-1/8" Boron
    Chain
    Not Included
    Cylinder Type
    Schlage C
    Number of Pins
    6 Pins
    Keying
    Keyed Different
    Custom Marking
    Laser engraved in 1 area
    Number of Key
    0 keys per lock
    More Details

  • 6621 D12 KD LZ1

    6621 D12 KD LZ1

    $30.47 40% Off

    Function
    Non-Key Retaining
    Shackle Length
    1-1/8" Boron
    Chain
    Not Included
    Cylinder Type
    Kwikset
    Number of Pins
    Not Included
    Keying
    Keyed Different
    Custom Marking
    Laser engraved in 1 area
    Number of Key
    Not Included
    More Details

  • 6621 D125 KD LZ3

    6621 D125 KD LZ3

    $33.14 40% Off

    Function
    Non-Key Retaining
    Shackle Length
    1-1/8" Boron
    Chain
    Not Included
    Cylinder Type
    Kwikset
    Number of Pins
    5 Pins
    Keying
    Keyed Different
    Custom Marking
    Laser engraved in 3 areas
    Number of Key
    Not Included
    More Details

  • 6621 NR D125 KA LZ2 NOKEY

    6621 NR D125 KA LZ2 NOKEY

    $32.65 40% Off

    Function
    Non-Removable Key
    Shackle Length
    1-1/8" Boron
    Chain
    Not Included
    Cylinder Type
    Kwikset
    Number of Pins
    5 Pins
    Keying
    Keyed Alike
    Custom Marking
    Laser engraved in 2 areas
    Number of Key
    0 keys per lock
    More Details

  • 6621 LF CN D046 LZ2 1KEY

    6621 LF CN D046 LZ2 1KEY

    $36.98 40% Off

    Function
    Non-Key Retaining
    Shackle Length
    1-1/2" Boron
    Chain
    Sash Chain
    Cylinder Type
    Schlage C
    Number of Pins
    6 Pins
    Keying
    Not Included
    Custom Marking
    Laser engraved in 2 areas
    Number of Key
    1 key per lock
    More Details

  • 6621 LF CN D046 MK LZ2 1KEY

    6621 LF CN D046 MK LZ2 1KEY

    $38.87 40% Off

    Function
    Non-Key Retaining
    Shackle Length
    1-1/2" Boron
    Chain
    Sash Chain
    Cylinder Type
    Schlage C
    Number of Pins
    6 Pins
    Custom Marking
    Laser engraved in 2 areas
    Number of Key
    1 key per lock
    More Details

  • 6621 NR LJ D046 KD LZ2 4KEY

    6621 NR LJ D046 KD LZ2 4KEY

    $36.90 40% Off

    Function
    Non-Removable Key
    Shackle Length
    2-1/2" Boron
    Chain
    Not Included
    Cylinder Type
    Schlage C
    Number of Pins
    6 Pins
    Keying
    Keyed Different
    Custom Marking
    Laser engraved in 2 areas
    Number of Key
    4 keys per lock
    More Details

  • 6621 NR LJ D125 LZ3 1KEY

    6621 NR LJ D125 LZ3 1KEY

    $34.71 40% Off

    Function
    Non-Removable Key
    Shackle Length
    2-1/2" Boron
    Chain
    Not Included
    Cylinder Type
    Kwikset
    Number of Pins
    5 Pins
    Keying
    Not Included
    Custom Marking
    Laser engraved in 3 areas
    Number of Key
    1 key per lock
    More Details

  • 6621 LF CN D125 KA LZ3

    6621 LF CN D125 KA LZ3

    $38.10 40% Off

    Function
    Non-Key Retaining
    Shackle Length
    1-1/2" Boron
    Chain
    Sash Chain
    Cylinder Type
    Kwikset
    Number of Pins
    5 Pins
    Keying
    Keyed Alike
    Custom Marking
    Laser engraved in 3 areas
    Number of Key
    Not Included
    More Details

  • 6621 CN WCS KAMK 1KEY

    6621 CN WCS KAMK 1KEY

    $25.81 40% Off

    Function
    Non-Key Retaining
    Shackle Length
    1-1/8" Boron
    Chain
    Sash Chain
    Cylinder Type
    Lock Body Only
    Number of Pins
    Not Included
    Custom Marking
    Not Included
    Number of Key
    1 key per lock
    More Details

  • 6621 LF CN D03 KD LZ3 3KEY

    6621 LF CN D03 KD LZ3 3KEY

    $38.50 40% Off

    Function
    Non-Key Retaining
    Shackle Length
    1-1/2" Boron
    Chain
    Sash Chain
    Cylinder Type
    Yale 8
    Number of Pins
    Not Included
    Keying
    Keyed Different
    Custom Marking
    Laser engraved in 3 areas
    Number of Key
    3 keys per lock
    More Details

  • 6621 LF CN D03 MK LZ4 3KEY

    6621 LF CN D03 MK LZ4 3KEY

    $41.71 40% Off

    Function
    Non-Key Retaining
    Shackle Length
    1-1/2" Boron
    Chain
    Sash Chain
    Cylinder Type
    Yale 8
    Number of Pins
    Not Included
    Custom Marking
    Laser engraved in 4 areas
    Number of Key
    3 keys per lock
    More Details

  • 6621 NR WCS5 KA LZ2 4KEY

    6621 NR WCS5 KA LZ2 4KEY

    $26.39 40% Off

    Function
    Non-Removable Key
    Shackle Length
    1-1/8" Boron
    Chain
    Not Included
    Cylinder Type
    Lock Body Only
    Number of Pins
    5 Pins
    Keying
    Keyed Alike
    Custom Marking
    Laser engraved in 2 areas
    Number of Key
    4 keys per lock
    More Details
Showing 16401 - 16450 of 16515 items

All orders must be in increments of 6

Product Features:

  • Choice of 22 Key-in-Knob keyways to match this padlock to your security door locks. See Related Information for options.
  • Ideal for harsh outdoor conditions - exclusive Weather Tough® cover protects lock from water, ice, dirt and grime
  • ProSeries® Padlocks are designed for Commercial/Industrial applications
  • 2-1/8" (54mm) heavy steel body withstands physical attack
  • 1-1/8" (29mm) tall, 5/16" (8mm) diameter hardened boron alloy shackle for superior cut resistance
  • Horizontal Clearance: 7/8" (22mm)
  • Dual ball locking mechanism resists pulling and prying
  • Lock available with or without cylinder to key at your facility. Accepts Lori® #1539 style cylinder.
  • Rekeyable 5- and 6-pin cylinder options.

Best Used For:

  • Truck Doors
  • Trailers, Vans & Moving Trucks
  • Manufacturing Environments
  • Industrial, Storefront & Business Gates