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

  • 6621 LJ CN D046 KD LZ4 1KEY

    6621 LJ CN D046 KD LZ4 1KEY

    $39.75 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
    Keyed Different
    Custom Marking
    Laser engraved in 4 areas
    Number of Key
    1 key per lock
    More Details

  • 6621 LF D046 KAMK LZ3 4KEY

    6621 LF D046 KAMK LZ3 4KEY

    $40.84 40% Off

    Function
    Non-Key Retaining
    Shackle Length
    1-1/2" Boron
    Chain
    Not Included
    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 CN D03 MK LZ2 NOKEY

    6621 LJ CN D03 MK LZ2 NOKEY

    $37.94 40% Off

    Function
    Non-Key Retaining
    Shackle Length
    2-1/2" Boron
    Chain
    Sash Chain
    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 D03 KAMK LZ1 3KEY

    6621 LJ CN D03 KAMK LZ1 3KEY

    $38.68 40% Off

    Function
    Non-Key Retaining
    Shackle Length
    2-1/2" Boron
    Chain
    Sash Chain
    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 NR LF CN D045 KA LZ3 4KEY

    6621 NR LF CN D045 KA LZ3 4KEY

    $40.57 40% Off

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

  • 6621 LF D036 KA LZ3 3KEY

    6621 LF D036 KA LZ3 3KEY

    $37.72 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
    Keyed Alike
    Custom Marking
    Laser engraved in 3 areas
    Number of Key
    3 keys per lock
    More Details

  • 6621 LJ CN WCS6 KD LZ1 4KEY

    6621 LJ CN WCS6 KD LZ1 4KEY

    $29.50 40% Off

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

  • 6621 NR LF CN D03 MK LZ4

    6621 NR LF CN D03 MK LZ4

    $40.47 40% Off

    Function
    Non-Removable Key
    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
    Not Included
    More Details

  • 6621 NR LF CN D035 KAMK LZ1

    6621 NR LF CN D035 KAMK LZ1

    $37.32 40% Off

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

  • 6621 NR D045 KD LZ1

    6621 NR D045 KD LZ1

    $30.47 40% Off

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

  • 6621 NR D046 MK LZ1 3KEY

    6621 NR D046 MK LZ1 3KEY

    $34.65 40% Off

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

  • 6621 D045 MK LZ4

    6621 D045 MK LZ4

    $36.35 40% Off

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

  • 6621 NR LF CN WCS6 KA LZ1 4KEY

    6621 NR LF CN WCS6 KA LZ1 4KEY

    $30.22 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 1 area
    Number of Key
    4 keys per lock
    More Details

  • 6621 D046 MK LZ3

    6621 D046 MK LZ3

    $36.08 40% Off

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

  • 6621 D12 KA LZ3

    6621 D12 KA LZ3

    $33.98 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 Alike
    Custom Marking
    Laser engraved in 3 areas
    Number of Key
    Not Included
    More Details

  • 6621 LF CN D045 KD LZ2 NOKEY

    6621 LF CN D045 KD LZ2 NOKEY

    $35.93 40% Off

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

  • 6621 NR D125 MK LZ1 NOKEY

    6621 NR D125 MK LZ1 NOKEY

    $32.36 40% Off

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

  • 6621 D035 KD LZ3 3KEY

    6621 D035 KD LZ3 3KEY

    $34.38 40% Off

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

  • 6621 D035 KA LZ2 NOKEY

    6621 D035 KA LZ2 NOKEY

    $32.65 40% Off

    Function
    Non-Key Retaining
    Shackle Length
    1-1/8" Boron
    Chain
    Not Included
    Cylinder Type
    Yale 8
    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 D035 KAMK LZ1 NOKEY

    6621 D035 KAMK LZ1 NOKEY

    $33.20 40% Off

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

  • 6621 LF CN D12 KA LZ2 3KEY

    6621 LF CN D12 KA LZ2 3KEY

    $38.01 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 Alike
    Custom Marking
    Laser engraved in 2 areas
    Number of Key
    3 keys per lock
    More Details

  • 6621 WCS KD LZ3 1KEY

    6621 WCS KD LZ3 1KEY

    $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
    1 key per lock
    More Details

  • 6621 NR WCS LZ3 3KEY

    6621 NR WCS LZ3 3KEY

    $25.65 40% Off

    Function
    Non-Removable Key
    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 3 areas
    Number of Key
    3 keys per lock
    More Details

  • 6621 NR LJ D125 MK LZ3 NOKEY

    6621 NR LJ D125 MK LZ3 NOKEY

    $36.60 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 NR WCS KAMK LZ2 1KEY

    6621 NR WCS KAMK LZ2 1KEY

    $25.81 40% Off

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

  • 6621 LF D04 4KEY

    6621 LF D04 4KEY

    $33.06 40% Off

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

  • 6621 LF D045 NOKEY

    6621 LF D045 NOKEY

    $30.59 40% Off

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

  • 6621 WCS5 MK LZ4 4KEY

    6621 WCS5 MK LZ4 4KEY

    $30.09 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 4 areas
    Number of Key
    4 keys per lock
    More Details

  • 6621 LF D12 KD 1KEY

    6621 LF D12 KD 1KEY

    $30.59 40% Off

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

  • 6621 NR WCS6 LZ3 4KEY

    6621 NR WCS6 LZ3 4KEY

    $27.93 40% Off

    Function
    Non-Removable Key
    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 3 areas
    Number of Key
    4 keys per lock
    More Details

  • 6621 LF CN D04 KD 1KEY

    6621 LF CN D04 KD 1KEY

    $33.26 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 Different
    Custom Marking
    Not Included
    Number of Key
    1 key per lock
    More Details

  • 6621 CN D045 KA LZ2 3KEY

    6621 CN D045 KA LZ2 3KEY

    $36.56 40% Off

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

  • 6621 LJ D125 1KEY

    6621 LJ D125 1KEY

    $30.71 40% Off

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

  • 6621 CN D045 KAMK LZ2 4KEY

    6621 CN D045 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
    5 Pins
    Custom Marking
    Laser engraved in 2 areas
    Number of Key
    4 keys per lock
    More Details

  • 6621 LJ CN D125 KD 3KEY

    6621 LJ CN D125 KD 3KEY

    $34.62 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 Different
    Custom Marking
    Not Included
    Number of Key
    3 keys per lock
    More Details

  • 6621 LF CN WCS6 LZ3 3KEY

    6621 LF CN WCS6 LZ3 3KEY

    $30.82 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
    Keying
    Not Included
    Custom Marking
    Laser engraved in 3 areas
    Number of Key
    3 keys per lock
    More Details

  • 6621 NR CN D046 KAMK LZ4

    6621 NR CN D046 KAMK LZ4

    $40.91 40% Off

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

  • 6621 NR CN D12 KD LZ1 NOKEY

    6621 NR CN D12 KD LZ1 NOKEY

    $33.14 40% Off

    Function
    Non-Removable Key
    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 1 area
    Number of Key
    0 keys per lock
    More Details

  • 6621 NR WCS5 MK NOKEY

    6621 NR WCS5 MK NOKEY

    $22.30 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
    0 keys per lock
    More Details

  • 6621 NR CN D046 MK 3KEY

    6621 NR CN D046 MK 3KEY

    $35.99 40% Off

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

  • 6621 LJ D04 KD LZ2 NOKEY

    6621 LJ D04 KD LZ2 NOKEY

    $33.38 40% Off

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

  • 6621 NR CN D125 KD LZ3 NOKEY

    6621 NR CN D125 KD LZ3 NOKEY

    $35.81 40% Off

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

  • 6621 CN D12 MK LZ2

    6621 CN D12 MK LZ2

    $36.37 40% Off

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

  • 6621 NR LJ CN D045 LZ1 3KEY

    6621 NR LJ CN D045 LZ1 3KEY

    $35.95 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
    Not Included
    Custom Marking
    Laser engraved in 1 area
    Number of Key
    3 keys per lock
    More Details

  • 6621 NR LF D03 KD NOKEY

    6621 NR LF D03 KD NOKEY

    $30.59 40% Off

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

  • 6621 NR LF D036

    6621 NR LF D036

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

  • 6621 NR LF WCS KAMK

    6621 NR LF WCS KAMK

    $24.59 40% Off

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

  • 6621 NR LJ D045 KA

    6621 NR LJ D045 KA

    $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
    Not Included
    More Details

  • 6621 LJ D046 KA LZ4 3KEY

    6621 LJ D046 KA 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
    6 Pins
    Keying
    Keyed Alike
    Custom Marking
    Laser engraved in 4 areas
    Number of Key
    3 keys per lock
    More Details

  • 6621 NR LJ CN D12 KA LZ1 1KEY

    6621 NR LJ CN D12 KA LZ1 1KEY

    $35.55 40% Off

    Function
    Non-Removable Key
    Shackle Length
    2-1/2" Boron
    Chain
    Sash Chain
    Cylinder Type
    Kwikset
    Number of Pins
    Not Included
    Keying
    Keyed Alike
    Custom Marking
    Laser engraved in 1 area
    Number of Key
    1 key per lock
    More Details
Showing 151 - 200 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