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

  • 6621 LF D125 MK LZ1

    6621 LF D125 MK LZ1

    $33.81 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 1 area
    Number of Key
    Not Included
    More Details

  • 6621 NR LF WCS6 KAMK LZ1 1KEY

    6621 NR LF WCS6 KAMK LZ1 1KEY

    $26.97 40% Off

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

  • 6621 NR LF CN D04 MK LZ4 NOKEY

    6621 NR LF CN D04 MK LZ4 NOKEY

    $40.47 40% Off

    Function
    Non-Removable Key
    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
    0 keys per lock
    More Details

  • 6621 LF D036 LZ4

    6621 LF D036 LZ4

    $36.96 40% Off

    Function
    Non-Key Retaining
    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 4 areas
    Number of Key
    Not Included
    More Details

  • 6621 LF D036 MK LZ1 3KEY

    6621 LF D036 MK LZ1 3KEY

    $36.10 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
    Laser engraved in 1 area
    Number of Key
    3 keys per lock
    More Details

  • 6621 LJ CN WCS5 KD LZ1 4KEY

    6621 LJ CN WCS5 KD LZ1 4KEY

    $28.45 40% Off

    Function
    Non-Key Retaining
    Shackle Length
    2-1/2" Boron
    Chain
    Sash Chain
    Cylinder Type
    Lock Body Only
    Number of Pins
    5 Pins
    Keying
    Keyed Different
    Custom Marking
    Laser engraved in 1 area
    Number of Key
    4 keys per lock
    More Details

  • 6621 LF WCS LZ1 3KEY

    6621 LF WCS LZ1 3KEY

    $24.43 40% Off

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

  • 6621 LJ CN WCS5 KAMK LZ4 4KEY

    6621 LJ CN WCS5 KAMK LZ4 4KEY

    $35.17 40% Off

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

  • 6621 NR D04 MK LZ1 3KEY

    6621 NR D04 MK LZ1 3KEY

    $33.60 40% Off

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

  • 6621 D04 LZ4 4KEY

    6621 D04 LZ4 4KEY

    $36.93 40% Off

    Function
    Non-Key Retaining
    Shackle Length
    1-1/8" Boron
    Chain
    Not Included
    Cylinder Type
    Schlage C
    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 WCS6 MK LZ1 1KEY

    6621 LF WCS6 MK LZ1 1KEY

    $26.13 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
    Custom Marking
    Laser engraved in 1 area
    Number of Key
    1 key per lock
    More Details

  • 6621 LF WCS6 MK LZ4

    6621 LF WCS6 MK LZ4

    $30.12 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
    Custom Marking
    Laser engraved in 4 areas
    Number of Key
    Not Included
    More Details

  • 6621 NR LF CN WCS5 KD LZ2 1KEY

    6621 NR LF CN WCS5 KD LZ2 1KEY

    $27.20 40% Off

    Function
    Non-Removable Key
    Shackle Length
    1-1/2" Boron
    Chain
    Sash Chain
    Cylinder Type
    Lock Body Only
    Number of Pins
    5 Pins
    Keying
    Keyed Different
    Custom Marking
    Laser engraved in 2 areas
    Number of Key
    1 key per lock
    More Details

  • 6621 D046 LZ1 4KEY

    6621 D046 LZ1 4KEY

    $33.99 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
    Not Included
    Custom Marking
    Laser engraved in 1 area
    Number of Key
    4 keys per lock
    More Details

  • 6621 NR LF CN WCS6 KA LZ2 1KEY

    6621 NR LF CN WCS6 KA LZ2 1KEY

    $29.09 40% Off

    Function
    Non-Removable Key
    Shackle Length
    1-1/2" Boron
    Chain
    Sash Chain
    Cylinder Type
    Lock Body Only
    Number of Pins
    6 Pins
    Keying
    Keyed Alike
    Custom Marking
    Laser engraved in 2 areas
    Number of Key
    1 key per lock
    More Details

  • 6621 D125 KD LZ4 1KEY

    6621 D125 KD LZ4 1KEY

    $34.46 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 4 areas
    Number of Key
    1 key per lock
    More Details

  • 6621 NR D03 MK LZ4 4KEY

    6621 NR D03 MK LZ4 4KEY

    $38.82 40% Off

    Function
    Non-Removable Key
    Shackle Length
    1-1/8" 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 D036 LZ1 1KEY

    6621 D036 LZ1 1KEY

    $31.52 40% Off

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

  • 6621 LF CN D12 MK LZ1 3KEY

    6621 LF CN D12 MK LZ1 3KEY

    $37.72 40% Off

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

  • 6621 WCS LZ1

    6621 WCS LZ1

    $21.74 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
    Not Included
    Custom Marking
    Laser engraved in 1 area
    Number of Key
    Not Included
    More Details

  • 6621 NR LJ D125 MK LZ4 3KEY

    6621 NR LJ D125 MK LZ4 3KEY

    $39.16 40% Off

    Function
    Non-Removable Key
    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 D125 KAMK LZ3 NOKEY

    6621 NR LJ D125 KAMK LZ3 NOKEY

    $37.44 40% Off

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

  • 6621 CN D125 3KEY

    6621 CN D125 3KEY

    $33.05 40% Off

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

  • 6621 CN WCS6 KD 3KEY

    6621 CN WCS6 KD 3KEY

    $25.37 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
    Not Included
    Number of Key
    3 keys per lock
    More Details

  • 6621 WCS6 LZ2

    6621 WCS6 LZ2

    $24.13 40% Off

    Function
    Non-Key Retaining
    Shackle Length
    1-1/8" Boron
    Chain
    Not Included
    Cylinder Type
    Lock Body Only
    Number of Pins
    6 Pins
    Keying
    Not Included
    Custom Marking
    Laser engraved in 2 areas
    Number of Key
    Not Included
    More Details

  • 6621 LF CN D035 LZ2

    6621 LF CN D035 LZ2

    $35.93 40% Off

    Function
    Non-Key Retaining
    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 2 areas
    Number of Key
    Not Included
    More Details

  • 6621 NR LJ D035 MK LZ3 4KEY

    6621 NR LJ D035 MK LZ3 4KEY

    $39.07 40% Off

    Function
    Non-Removable Key
    Shackle Length
    2-1/2" 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 CN D04 KA LZ4 1KEY

    6621 CN D04 KA LZ4 1KEY

    $37.97 40% Off

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

  • 6621 NR LJ WCS KD LZ2 3KEY

    6621 NR LJ WCS KD LZ2 3KEY

    $25.89 40% Off

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

  • 6621 LF CN WCS KD LZ3 4KEY

    6621 LF CN WCS KD LZ3 4KEY

    $31.00 40% Off

    Function
    Non-Key Retaining
    Shackle Length
    1-1/2" 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
    4 keys per lock
    More Details

  • 6621 LJ D04 KAMK 4KEY

    6621 LJ D04 KAMK 4KEY

    $35.91 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
    Not Included
    Number of Key
    4 keys per lock
    More Details

  • 6621 LJ D046 KD 3KEY

    6621 LJ D046 KD 3KEY

    $33.00 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 Different
    Custom Marking
    Not Included
    Number of Key
    3 keys per lock
    More Details

  • 6621 CN D045 MK LZ1 3KEY

    6621 CN D045 MK LZ1 3KEY

    $36.27 40% Off

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

  • 6621 LJ D035 KA 1KEY

    6621 LJ D035 KA 1KEY

    $31.55 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
    1 key per lock
    More Details

  • 6621 NR LJ WCS6 MK LZ4

    6621 NR LJ WCS6 MK LZ4

    $30.24 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 4 areas
    Number of Key
    Not Included
    More Details

  • 6621 NR D036 MK 4KEY

    6621 NR D036 MK 4KEY

    $34.55 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
    4 keys per lock
    More Details

  • 6621 NR CN D12 MK LZ4 4KEY

    6621 NR CN D12 MK LZ4 4KEY

    $41.49 40% Off

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

  • 6621 NR CN D045 1KEY

    6621 NR CN D045 1KEY

    $31.81 40% Off

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

  • 6621 NR CN D125 KAMK LZ4 3KEY

    6621 NR CN D125 KAMK LZ4 3KEY

    $41.10 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 D03 MK

    6621 NR LF D03 MK

    $32.48 40% Off

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

  • 6621 NR LF D036 KD 4KEY

    6621 NR LF D036 KD 4KEY

    $34.11 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
    4 keys per lock
    More Details

  • 6621 NR LJ CN D045 KAMK LZ2 3KEY

    6621 NR LJ CN D045 KAMK LZ2 3KEY

    $40.02 40% Off

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

  • 6621 NR CN D03 MK LZ1 4KEY

    6621 NR CN D03 MK LZ1 4KEY

    $37.50 40% Off

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

  • 6621 NR LF CN D12 KAMK 1KEY

    6621 NR LF CN D12 KAMK 1KEY

    $35.99 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
    1 key per lock
    More Details

  • 6621 NR LF CN D036 MK

    6621 NR LF CN D036 MK

    $36.20 40% Off

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

  • 6621 LJ D046 LZ3 NOKEY

    6621 LJ D046 LZ3 NOKEY

    $35.76 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
    Not Included
    Custom Marking
    Laser engraved in 3 areas
    Number of Key
    0 keys per lock
    More Details

  • 6621 NR LJ CN D046 KAMK LZ2 1KEY

    6621 NR LJ CN D046 KAMK LZ2 1KEY

    $39.83 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 2 areas
    Number of Key
    1 key per lock
    More Details

  • 6621 NR LJ D045 KA NOKEY

    6621 NR LJ D045 KA NOKEY

    $31.55 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 Alike
    Custom Marking
    Not Included
    Number of Key
    0 keys per lock
    More Details

  • 6621 NR CN D036 LZ4 4KEY

    6621 NR CN D036 LZ4 4KEY

    $40.65 40% Off

    Function
    Non-Removable Key
    Shackle Length
    1-1/8" Boron
    Chain
    Sash Chain
    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 NR LJ CN D12 MK LZ4 4KEY

    6621 NR LJ CN D12 MK LZ4 4KEY

    $43.06 40% Off

    Function
    Non-Removable Key
    Shackle Length
    2-1/2" Boron
    Chain
    Sash Chain
    Cylinder Type
    Kwikset
    Number of Pins
    Not Included
    Custom Marking
    Laser engraved in 4 areas
    Number of Key
    4 keys per lock
    More Details
Showing 2751 - 2800 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