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Master Lock S31 Lightweight Thermoplastic Padlock, Zenex Key Retaining

  • S31 KAMKW417 TEAL COV LZ4 NOKEY

    S31 KAMKW417 TEAL COV LZ4 NOKEY

    $29.99 20% Off

    Shackle Length
    1-1/2" Stainless Steel
    Color
    Teal
    Cover
    Included
    Custom Marking
    Laser engraved in 4 areas
    Number of Key
    0 keys per lock
    Language
    English
    More Details

  • S31 MK LT RED COV LZ4 NOKEY LFR

    S31 MK LT RED COV LZ4 NOKEY LFR

    $31.22 20% Off

    Shackle Length
    3" Stainless Steel
    Color
    Red
    Cover
    Included
    Custom Marking
    Laser engraved in 4 areas
    Number of Key
    0 keys per lock
    Language
    Euro French
    More Details

  • S31 KD GRN 1KEY LFR

    S31 KD GRN 1KEY LFR

    $15.24 20% Off

    Keying
    Keyed Different
    Shackle Length
    1-1/2" Stainless Steel
    Color
    Green
    Cover
    Not Included
    Custom Marking
    Not Included
    Number of Key
    1 key per lock
    Language
    Euro French
    More Details

  • S31 KD TEAL NOKEY

    S31 KD TEAL NOKEY

    $15.24 20% Off

    Keying
    Keyed Different
    Shackle Length
    1-1/2" Stainless Steel
    Color
    Teal
    Cover
    Not Included
    Custom Marking
    Not Included
    Number of Key
    0 keys per lock
    Language
    English
    More Details

  • S31 KD LT YLW COV 1KEY LRU

    S31 KD LT YLW COV 1KEY LRU

    $19.82 20% Off

    Keying
    Keyed Different
    Shackle Length
    3" Stainless Steel
    Color
    Yellow
    Cover
    Included
    Custom Marking
    Not Included
    Number of Key
    1 key per lock
    Language
    Russian
    More Details

  • S31 KD LT ORJ COV 4KEY LRU

    S31 KD LT ORJ COV 4KEY LRU

    $24.76 20% Off

    Keying
    Keyed Different
    Shackle Length
    3" Stainless Steel
    Color
    Orange
    Cover
    Included
    Custom Marking
    Not Included
    Number of Key
    4 keys per lock
    Language
    Russian
    More Details

  • S31 MK LT BLU LZ1 1KEY LFR

    S31 MK LT BLU LZ1 1KEY LFR

    $23.50 20% Off

    Shackle Length
    3" Stainless Steel
    Color
    Blue
    Cover
    Not Included
    Custom Marking
    Laser engraved in 1 area
    Number of Key
    1 key per lock
    Language
    Euro French
    More Details

  • S31 KA YLW LRU

    S31 KA YLW LRU

    $16.19 20% Off

    Keying
    Keyed Alike
    Shackle Length
    1-1/2" Stainless Steel
    Color
    Yellow
    Cover
    Not Included
    Custom Marking
    Not Included
    Number of Key
    2 keys per lock
    Language
    Russian
    More Details

  • S31 KD RED COV LZ4 4KEY

    S31 KD RED COV LZ4 4KEY

    $29.68 20% Off

    Keying
    Keyed Different
    Shackle Length
    1-1/2" Stainless Steel
    Color
    Red
    Cover
    Included
    Custom Marking
    Laser engraved in 4 areas
    Number of Key
    4 keys per lock
    Language
    English
    More Details

  • S31 KA LT BLU COV 4KEY LFR

    S31 KA LT BLU COV 4KEY LFR

    $25.71 20% Off

    Keying
    Keyed Alike
    Shackle Length
    3" Stainless Steel
    Color
    Blue
    Cover
    Included
    Custom Marking
    Not Included
    Number of Key
    4 keys per lock
    Language
    Euro French
    More Details

  • S31 KA LT TEAL COV NOKEY

    S31 KA LT TEAL COV NOKEY

    $20.77 20% Off

    Keying
    Keyed Alike
    Shackle Length
    3" Stainless Steel
    Color
    Teal
    Cover
    Included
    Custom Marking
    Not Included
    Number of Key
    0 keys per lock
    Language
    English
    More Details

  • S31 KA LT RED LZ3 NOKEY LFR

    S31 KA LT RED LZ3 NOKEY LFR

    $23.70 20% Off

    Keying
    Keyed Alike
    Shackle Length
    3" Stainless Steel
    Color
    Red
    Cover
    Not Included
    Custom Marking
    Laser engraved in 3 areas
    Number of Key
    0 keys per lock
    Language
    Euro French
    More Details

  • S31 MKW417 ORJ NOKEY LRU

    S31 MKW417 ORJ NOKEY LRU

    $19.54 20% Off

    Shackle Length
    1-1/2" Stainless Steel
    Color
    Orange
    Cover
    Not Included
    Custom Marking
    Not Included
    Number of Key
    0 keys per lock
    Language
    Russian
    More Details

  • S31 MK LT RED COV 3KEY LRU

    S31 MK LT RED COV 3KEY LRU

    $27.42 20% Off

    Shackle Length
    3" Stainless Steel
    Color
    Red
    Cover
    Included
    Custom Marking
    Not Included
    Number of Key
    3 keys per lock
    Language
    Russian
    More Details

  • S31 MK LTW417 RED 3KEY

    S31 MK LTW417 RED 3KEY

    $25.02 20% Off

    Shackle Length
    3" Stainless Steel
    Color
    Red
    Cover
    Not Included
    Custom Marking
    Not Included
    Number of Key
    3 keys per lock
    Language
    English
    More Details

  • S31 KAMK LT YLW COV LZ1 3KEY

    S31 KAMK LT YLW COV LZ1 3KEY

    $30.15 20% Off

    Shackle Length
    3" Stainless Steel
    Color
    Yellow
    Cover
    Included
    Custom Marking
    Laser engraved in 1 area
    Number of Key
    3 keys per lock
    Language
    English
    More Details

  • S31 KAMK BLK 1KEY

    S31 KAMK BLK 1KEY

    $20.49 20% Off

    Shackle Length
    1-1/2" Stainless Steel
    Color
    Black
    Cover
    Not Included
    Custom Marking
    Not Included
    Number of Key
    1 key per lock
    Language
    English
    More Details

  • S31 KAMK WHT COV

    S31 KAMK WHT COV

    $22.89 20% Off

    Shackle Length
    1-1/2" Stainless Steel
    Color
    White
    Cover
    Included
    Custom Marking
    Not Included
    Number of Key
    2 keys per lock
    Language
    English
    More Details

  • S31 KAMKW417 BLU COV 3KEY LFR

    S31 KAMKW417 BLU COV 3KEY LFR

    $26.19 20% Off

    Shackle Length
    1-1/2" Stainless Steel
    Color
    Blue
    Cover
    Included
    Custom Marking
    Not Included
    Number of Key
    3 keys per lock
    Language
    Euro French
    More Details

  • S31 KAMKW417 WHT 1KEY LRU

    S31 KAMKW417 WHT 1KEY LRU

    $20.49 20% Off

    Shackle Length
    1-1/2" Stainless Steel
    Color
    White
    Cover
    Not Included
    Custom Marking
    Not Included
    Number of Key
    1 key per lock
    Language
    Russian
    More Details

  • S31 KAMK LT PRP COV

    S31 KAMK LT PRP COV

    $25.07 20% Off

    Shackle Length
    3" Stainless Steel
    Color
    Purple
    Cover
    Included
    Custom Marking
    Not Included
    Number of Key
    2 keys per lock
    Language
    English
    More Details

  • S31 KAMK LTW417 GRN COV

    S31 KAMK LTW417 GRN COV

    $25.07 20% Off

    Shackle Length
    3" Stainless Steel
    Color
    Green
    Cover
    Included
    Custom Marking
    Not Included
    Number of Key
    2 keys per lock
    Language
    English
    More Details

  • S31 MK LT TEAL LZ2 4KEY LRU

    S31 MK LT TEAL LZ2 4KEY LRU

    $30.21 20% Off

    Shackle Length
    3" Stainless Steel
    Color
    Teal
    Cover
    Not Included
    Custom Marking
    Laser engraved in 2 areas
    Number of Key
    4 keys per lock
    Language
    Russian
    More Details

  • S31 KA LT BLU COV LZ1 NOKEY LRU

    S31 KA LT BLU COV LZ1 NOKEY LRU

    $22.55 20% Off

    Keying
    Keyed Alike
    Shackle Length
    3" Stainless Steel
    Color
    Blue
    Cover
    Included
    Custom Marking
    Laser engraved in 1 area
    Number of Key
    0 keys per lock
    Language
    Russian
    More Details

  • S31 MK LT WHT LZ3 1KEY

    S31 MK LT WHT LZ3 1KEY

    $27.05 20% Off

    Shackle Length
    3" Stainless Steel
    Color
    White
    Cover
    Not Included
    Custom Marking
    Laser engraved in 3 areas
    Number of Key
    1 key per lock
    Language
    English
    More Details

  • S31 KA LT BLK COV LZ3 LRU

    S31 KA LT BLK COV LZ3 LRU

    $26.10 20% Off

    Keying
    Keyed Alike
    Shackle Length
    3" Stainless Steel
    Color
    Black
    Cover
    Included
    Custom Marking
    Laser engraved in 3 areas
    Number of Key
    2 keys per lock
    Language
    Russian
    More Details

  • S31 KAMK LT PRP COV LZ3 NOKEY LRU

    S31 KAMK LT PRP COV LZ3 NOKEY LRU

    $30.40 20% Off

    Shackle Length
    3" Stainless Steel
    Color
    Purple
    Cover
    Included
    Custom Marking
    Laser engraved in 3 areas
    Number of Key
    0 keys per lock
    Language
    Russian
    More Details

  • S31 MK LTW417 GRN LZ2 NOKEY LFR

    S31 MK LTW417 GRN LZ2 NOKEY LFR

    $25.27 20% Off

    Shackle Length
    3" Stainless Steel
    Color
    Green
    Cover
    Not Included
    Custom Marking
    Laser engraved in 2 areas
    Number of Key
    0 keys per lock
    Language
    Euro French
    More Details

  • S31 KD TEAL LZ2 4KEY

    S31 KD TEAL LZ2 4KEY

    $23.73 20% Off

    Keying
    Keyed Different
    Shackle Length
    1-1/2" Stainless Steel
    Color
    Teal
    Cover
    Not Included
    Custom Marking
    Laser engraved in 2 areas
    Number of Key
    4 keys per lock
    Language
    English
    More Details

  • S31 KA LT PRP LZ4 NOKEY LRU

    S31 KA LT PRP LZ4 NOKEY LRU

    $25.47 20% Off

    Keying
    Keyed Alike
    Shackle Length
    3" Stainless Steel
    Color
    Purple
    Cover
    Not Included
    Custom Marking
    Laser engraved in 4 areas
    Number of Key
    0 keys per lock
    Language
    Russian
    More Details

  • S31 MK LTW417 BLK COV LZ4 3KEY

    S31 MK LTW417 BLK COV LZ4 3KEY

    $34.52 20% Off

    Shackle Length
    3" Stainless Steel
    Color
    Black
    Cover
    Included
    Custom Marking
    Laser engraved in 4 areas
    Number of Key
    3 keys per lock
    Language
    English
    More Details

  • S31 KD LT RED LZ4 1KEY LRU

    S31 KD LT RED LZ4 1KEY LRU

    $24.52 20% Off

    Keying
    Keyed Different
    Shackle Length
    3" Stainless Steel
    Color
    Red
    Cover
    Not Included
    Custom Marking
    Laser engraved in 4 areas
    Number of Key
    1 key per lock
    Language
    Russian
    More Details

  • S31 KAMK LTW417 BLK COV LZ2 4KEY LRU

    S31 KAMK LTW417 BLK COV LZ2 4KEY LRU

    $33.56 20% Off

    Shackle Length
    3" Stainless Steel
    Color
    Black
    Cover
    Included
    Custom Marking
    Laser engraved in 2 areas
    Number of Key
    4 keys per lock
    Language
    Russian
    More Details

  • S31 MK LTW417 WHT LZ3 1KEY LRU

    S31 MK LTW417 WHT LZ3 1KEY LRU

    $27.05 20% Off

    Shackle Length
    3" Stainless Steel
    Color
    White
    Cover
    Not Included
    Custom Marking
    Laser engraved in 3 areas
    Number of Key
    1 key per lock
    Language
    Russian
    More Details

  • S31 KAMK LTW417 TEAL COV LZ1 4KEY

    S31 KAMK LTW417 TEAL COV LZ1 4KEY

    $31.79 20% Off

    Shackle Length
    3" Stainless Steel
    Color
    Teal
    Cover
    Included
    Custom Marking
    Laser engraved in 1 area
    Number of Key
    4 keys per lock
    Language
    English
    More Details

  • S31 MK BLU COV LZ2 NOKEY LRU

    S31 MK BLU COV LZ2 NOKEY LRU

    $25.49 20% Off

    Shackle Length
    1-1/2" Stainless Steel
    Color
    Blue
    Cover
    Included
    Custom Marking
    Laser engraved in 2 areas
    Number of Key
    0 keys per lock
    Language
    Russian
    More Details

  • S31 KAMK YLW LZ2

    S31 KAMK YLW LZ2

    $24.04 20% Off

    Shackle Length
    1-1/2" Stainless Steel
    Color
    Yellow
    Cover
    Not Included
    Custom Marking
    Laser engraved in 2 areas
    Number of Key
    2 keys per lock
    Language
    English
    More Details

  • S31 KAMK YLW COV LZ2 3KEY LFR

    S31 KAMK YLW COV LZ2 3KEY LFR

    $29.74 20% Off

    Shackle Length
    1-1/2" Stainless Steel
    Color
    Yellow
    Cover
    Included
    Custom Marking
    Laser engraved in 2 areas
    Number of Key
    3 keys per lock
    Language
    Euro French
    More Details

  • S31 KAMK YLW COV LZ3 4KEY LFR

    S31 KAMK YLW COV LZ3 4KEY LFR

    $33.16 20% Off

    Shackle Length
    1-1/2" Stainless Steel
    Color
    Yellow
    Cover
    Included
    Custom Marking
    Laser engraved in 3 areas
    Number of Key
    4 keys per lock
    Language
    Euro French
    More Details

  • S31 KAMK GRN LZ4 1KEY LFR

    S31 KAMK GRN LZ4 1KEY LFR

    $27.59 20% Off

    Shackle Length
    1-1/2" Stainless Steel
    Color
    Green
    Cover
    Not Included
    Custom Marking
    Laser engraved in 4 areas
    Number of Key
    1 key per lock
    Language
    Euro French
    More Details

  • S31 KD LT BLU COV LZ3

    S31 KD LT BLU COV LZ3

    $25.15 20% Off

    Keying
    Keyed Different
    Shackle Length
    3" Stainless Steel
    Color
    Blue
    Cover
    Included
    Custom Marking
    Laser engraved in 3 areas
    Number of Key
    2 keys per lock
    Language
    English
    More Details

  • S31 KD LT BLU COV LZ4 NOKEY

    S31 KD LT BLU COV LZ4 NOKEY

    $26.92 20% Off

    Keying
    Keyed Different
    Shackle Length
    3" Stainless Steel
    Color
    Blue
    Cover
    Included
    Custom Marking
    Laser engraved in 4 areas
    Number of Key
    0 keys per lock
    Language
    English
    More Details

  • S31 KAMK BLU LZ2 3KEY LFR

    S31 KAMK BLU LZ2 3KEY LFR

    $27.34 20% Off

    Shackle Length
    1-1/2" Stainless Steel
    Color
    Blue
    Cover
    Not Included
    Custom Marking
    Laser engraved in 2 areas
    Number of Key
    3 keys per lock
    Language
    Euro French
    More Details

  • S31 MK TEAL LZ3 3KEY

    S31 MK TEAL LZ3 3KEY

    $28.17 20% Off

    Shackle Length
    1-1/2" Stainless Steel
    Color
    Teal
    Cover
    Not Included
    Custom Marking
    Laser engraved in 3 areas
    Number of Key
    3 keys per lock
    Language
    English
    More Details

  • S31 MK PRP LZ4 NOKEY

    S31 MK PRP LZ4 NOKEY

    $26.64 20% Off

    Shackle Length
    1-1/2" Stainless Steel
    Color
    Purple
    Cover
    Not Included
    Custom Marking
    Laser engraved in 4 areas
    Number of Key
    0 keys per lock
    Language
    English
    More Details

  • S31 KAMK PRP LZ3 3KEY

    S31 KAMK PRP LZ3 3KEY

    $29.12 20% Off

    Shackle Length
    1-1/2" Stainless Steel
    Color
    Purple
    Cover
    Not Included
    Custom Marking
    Laser engraved in 3 areas
    Number of Key
    3 keys per lock
    Language
    English
    More Details

  • S31 KD LT PRP LZ4 4KEY LRU

    S31 KD LT PRP LZ4 4KEY LRU

    $29.46 20% Off

    Keying
    Keyed Different
    Shackle Length
    3" Stainless Steel
    Color
    Purple
    Cover
    Not Included
    Custom Marking
    Laser engraved in 4 areas
    Number of Key
    4 keys per lock
    Language
    Russian
    More Details

  • S31 MKW417 YLW LZ4 NOKEY LFR

    S31 MKW417 YLW LZ4 NOKEY LFR

    $26.64 20% Off

    Shackle Length
    1-1/2" Stainless Steel
    Color
    Yellow
    Cover
    Not Included
    Custom Marking
    Laser engraved in 4 areas
    Number of Key
    0 keys per lock
    Language
    Euro French
    More Details

  • S31 KAMK WHT COV LZ2

    S31 KAMK WHT COV LZ2

    $26.44 20% Off

    Shackle Length
    1-1/2" Stainless Steel
    Color
    White
    Cover
    Included
    Custom Marking
    Laser engraved in 2 areas
    Number of Key
    2 keys per lock
    Language
    English
    More Details

  • S31 MKW417 GRN LZ4 3KEY LFR

    S31 MKW417 GRN LZ4 3KEY LFR

    $29.94 20% Off

    Shackle Length
    1-1/2" Stainless Steel
    Color
    Green
    Cover
    Not Included
    Custom Marking
    Laser engraved in 4 areas
    Number of Key
    3 keys per lock
    Language
    Euro French
    More Details
Showing 1 - 50 of 16200 items

Product Features

  • 3/16" shackle diameter fits in more places
  • Made of durable, chemical resistant engineered plastic with a thermal range of -70 to +350 degrees F (-56 to +176 C)
  • Choice of 9 colors
  • Optional cover available to protect shackle and keyway from dust and grime in harsh environments
  • Includes labels in English, Spanish, and French
  • Dimensions
    • Vertical Clearance: 1-1/2" (3" shackle option available)
    • Horizontal Clearance: 5/8"
    • Shackle Diameter: 3/16"
  • All orders must be in increments of 6

Lockout-tagout (LO/TO) safety procedures, as defined by Occupational Safety and Health Administration (OSHA), require that lockout devices be durable and standardized. Lockout devices use color, warning labels or tags, and a physical barrier to temporarily prohibit machine operation or power activation, and reduce accidents, during maintenance or repair. This padlock is just one of many parts needed to safely execute a lockout.