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The Master Lock No. 6321KA ProSeries® Shrouded Padlock, keyed alike – multiple locks open with the same key – features a 2-1/8in (54mm) heavy steel body that withstands physical attack and a 3/4in (19mm) tall, 5/16in (8mm) diameter hardened boron alloy shackle for superior cut resistance. Ideal for transportation and industrial applications, the iron shroud protects the shackle from bolt cutters and a dual ball locking mechanism resists pulling and prying. The high security, rekeyable 5-pin cylinder with spool pins is virtually impossible to pick.

  • Keyed Alike - order multiple locks to open with the same key or order to match other locks with the W6000 cylinder
  • Iron shroud protects shackle from bolt cutters
  • ProSeries® Padlocks are designed for Commercial/Industrial applications
  • 2-1/8in (54mm) heavy steel body withstands physical attack
  • 3/4in (19mm) tall, 5/16in (8mm) diameter hardened boron alloy shackle for superior cut resistance
  • Dual ball locking mechanism resists pulling and prying
  • High security, rekeyable 5-pin cylinder with spool pins is virtually impossible to pick