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

  • 6621 LF CN D04 KA LZ1 1KEY

    6621 LF CN D04 KA LZ1 1KEY

    $35.43 40% Off

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

  • 6621 NR D12 LZ4 4KEY

    6621 NR D12 LZ4 4KEY

    $36.93 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
    4 keys per lock
    More Details

  • 6621 LF CN D04 MK LZ4 3KEY

    6621 LF CN D04 MK LZ4 3KEY

    $41.71 40% Off

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

  • 6621 NR LJ D045 LZ4 NOKEY

    6621 NR LJ D045 LZ4 NOKEY

    $36.03 40% Off

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

  • 6621 NR LJ D045 KD LZ4

    6621 NR LJ D045 KD LZ4

    $36.03 40% Off

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

  • 6621 D03 MK LZ1 3KEY

    6621 D03 MK LZ1 3KEY

    $33.60 40% Off

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

  • 6621 LF CN D046 MK LZ2 NOKEY

    6621 LF CN D046 MK LZ2 NOKEY

    $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
    0 keys per lock
    More Details

  • 6621 LF CN D046 KAMK LZ4 NOKEY

    6621 LF CN D046 KAMK LZ4 NOKEY

    $42.36 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 4 areas
    Number of Key
    0 keys per lock
    More Details

  • 6621 LF CN D12 KD LZ4 4KEY

    6621 LF CN D12 KD LZ4 4KEY

    $41.05 40% Off

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

  • 6621 NR LJ D12 KD LZ3 4KEY

    6621 NR LJ D12 KD LZ3 4KEY

    $37.18 40% Off

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

  • 6621 NR D036 KD LZ4 4KEY

    6621 NR D036 KD LZ4 4KEY

    $37.98 40% Off

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

  • 6621 WCS KD LZ3 NOKEY

    6621 WCS KD LZ3 NOKEY

    $24.41 40% Off

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

  • 6621 NR LJ D03 MK LZ4 NOKEY

    6621 NR LJ D03 MK LZ4 NOKEY

    $37.92 40% Off

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

  • 6621 WCS5 MK LZ1 4KEY

    6621 WCS5 MK LZ1 4KEY

    $26.10 40% Off

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

  • 6621 LF D046 KA 1KEY

    6621 LF D046 KA 1KEY

    $32.48 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
    Keyed Alike
    Custom Marking
    Not Included
    Number of Key
    1 key per lock
    More Details

  • 6621 LF D036 KAMK 3KEY

    6621 LF D036 KAMK 3KEY

    $35.61 40% Off

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

  • 6621 LF WCS6 KA NOKEY

    6621 LF WCS6 KA NOKEY

    $23.75 40% Off

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

  • 6621 NR CN D04 KD LZ1 4KEY

    6621 NR CN D04 KD LZ1 4KEY

    $35.61 40% Off

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

  • 6621 NR CN D04 MK LZ2 4KEY

    6621 NR CN D04 MK LZ2 4KEY

    $38.84 40% Off

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

  • 6621 CN D04 KAMK LZ2 4KEY

    6621 CN D04 KAMK LZ2 4KEY

    $39.68 40% Off

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

  • 6621 LF CN WCS6 KAMK

    6621 LF CN WCS6 KAMK

    $28.31 40% Off

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

  • 6621 LJ D035 KA 3KEY

    6621 LJ D035 KA 3KEY

    $32.79 40% Off

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

  • 6621 CN D046 LZ1 3KEY

    6621 CN D046 LZ1 3KEY

    $35.43 40% Off

    Function
    Non-Key Retaining
    Shackle Length
    1-1/8" 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
    3 keys per lock
    More Details

  • 6621 LJ CN D045 KAMK

    6621 LJ CN D045 KAMK

    $36.11 40% Off

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

  • 6621 CN D046 KD LZ2 3KEY

    6621 CN D046 KD LZ2 3KEY

    $36.77 40% Off

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

  • 6621 NR D036 MK NOKEY

    6621 NR D036 MK NOKEY

    $32.08 40% Off

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

  • 6621 NR LJ CN D04 KA LZ2 4KEY

    6621 NR LJ CN D04 KA LZ2 4KEY

    $39.36 40% Off

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

  • 6621 NR CN D12 3KEY

    6621 NR CN D12 3KEY

    $33.05 40% Off

    Function
    Non-Removable Key
    Shackle Length
    1-1/8" Boron
    Chain
    Sash Chain
    Cylinder Type
    Kwikset
    Number of Pins
    Not Included
    Keying
    Not Included
    Custom Marking
    Not Included
    Number of Key
    3 keys per lock
    More Details

  • 6621 NR CN D03 KD

    6621 NR CN D03 KD

    $31.81 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 Different
    Custom Marking
    Not Included
    Number of Key
    Not Included
    More Details

  • 6621 NR CN WCS5 KA

    6621 NR CN WCS5 KA

    $23.92 40% Off

    Function
    Non-Removable Key
    Shackle Length
    1-1/8" Boron
    Chain
    Sash Chain
    Cylinder Type
    Lock Body Only
    Number of Pins
    5 Pins
    Keying
    Keyed Alike
    Custom Marking
    Not Included
    Number of Key
    Not Included
    More Details

  • 6621 LJ D04 MK LZ4 3KEY

    6621 LJ D04 MK LZ4 3KEY

    $39.16 40% Off

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

  • 6621 NR CN D125 KAMK LZ4 4KEY

    6621 NR CN D125 KAMK LZ4 4KEY

    $42.33 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
    4 keys per lock
    More Details

  • 6621 NR LF D12 KAMK 1KEY

    6621 NR LF D12 KAMK 1KEY

    $33.32 40% Off

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

  • 6621 NR CN D03 LZ3 4KEY

    6621 NR CN D03 LZ3 4KEY

    $38.28 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
    Not Included
    Custom Marking
    Laser engraved in 3 areas
    Number of Key
    4 keys per lock
    More Details

  • 6621 NR LF D036 KD NOKEY

    6621 NR LF D036 KD NOKEY

    $31.64 40% Off

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

  • 6621 LJ D045 KD LZ3

    6621 LJ D045 KD LZ3

    $34.71 40% Off

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

  • 6621 NR LF CN D12 KAMK 3KEY

    6621 NR LF CN D12 KAMK 3KEY

    $37.23 40% Off

    Function
    Non-Removable Key
    Shackle Length
    1-1/2" Boron
    Chain
    Sash Chain
    Cylinder Type
    Kwikset
    Number of Pins
    Not Included
    Custom Marking
    Not Included
    Number of Key
    3 keys per lock
    More Details

  • 6621 NR LJ CN D046 MK LZ3 4KEY

    6621 NR LJ CN D046 MK LZ3 4KEY

    $42.79 40% Off

    Function
    Non-Removable Key
    Shackle Length
    2-1/2" Boron
    Chain
    Sash Chain
    Cylinder Type
    Schlage C
    Number of Pins
    6 Pins
    Custom Marking
    Laser engraved in 3 areas
    Number of Key
    4 keys per lock
    More Details

  • 6621 LJ D046 KA LZ1 1KEY

    6621 LJ D046 KA LZ1 1KEY

    $33.93 40% Off

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

  • 6621 NR LJ D045 MK

    6621 NR LJ D045 MK

    $32.60 40% Off

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

  • 6621 LJ D046 KAMK LZ2 4KEY

    6621 LJ D046 KAMK LZ2 4KEY

    $39.63 40% Off

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

  • 6621 NR LJ CN D045 KA 4KEY

    6621 NR LJ CN D045 KA 4KEY

    $36.69 40% Off

    Function
    Non-Removable Key
    Shackle Length
    2-1/2" Boron
    Chain
    Sash Chain
    Cylinder Type
    Schlage C
    Number of Pins
    5 Pins
    Keying
    Keyed Alike
    Custom Marking
    Not Included
    Number of Key
    4 keys per lock
    More Details

  • 6621 NR CN WCS KD LZ3 NOKEY

    6621 NR CN WCS KD LZ3 NOKEY

    $27.08 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 Different
    Custom Marking
    Laser engraved in 3 areas
    Number of Key
    0 keys per lock
    More Details

  • 6621 NR LJ CN D03 NOKEY

    6621 NR LJ CN D03 NOKEY

    $33.38 40% Off

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

  • 6621 NR CN WCS5 KA LZ1 4KEY

    6621 NR CN WCS5 KA LZ1 4KEY

    $27.72 40% Off

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

  • 6621 NR LF D046 KA LZ1 3KEY

    6621 NR LF D046 KA LZ1 3KEY

    $35.05 40% Off

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

  • 6621 NR LF D046 KAMK LZ2 4KEY

    6621 NR LF D046 KAMK LZ2 4KEY

    $39.51 40% Off

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

  • 6621 NR LJ CN WCS6 MK LZ2 NOKEY

    6621 NR LJ CN WCS6 MK LZ2 NOKEY

    $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
    0 keys per lock
    More Details

  • 6621 NR LF D036 LZ1 3KEY

    6621 NR LF D036 LZ1 3KEY

    $34.21 40% Off

    Function
    Non-Removable Key
    Shackle Length
    1-1/2" Boron
    Chain
    Not Included
    Cylinder Type
    Yale 8
    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 D12 KD LZ4 NOKEY

    6621 LJ CN D12 KD LZ4 NOKEY

    $38.70 40% Off

    Function
    Non-Key Retaining
    Shackle Length
    2-1/2" Boron
    Chain
    Sash Chain
    Cylinder Type
    Kwikset
    Number of Pins
    Not Included
    Keying
    Keyed Different
    Custom Marking
    Laser engraved in 4 areas
    Number of Key
    0 keys per lock
    More Details
Showing 3101 - 3150 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