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The Master Lock No. 4D Laminated Padlock features a 1-9/16in (40mm) wide laminated brass body for maximum strength and corrosion resistance. The 9/32in (7mm) diameter shackle is 3/4in (19mm) long and made of hardened steel, offering extra resistance to cutting and sawing. The 4-pin cylinder prevents picking and the dual locking ball bearings provide resistance against prying and hammering. The Limited Lifetime Warranty provides peace of mind from a brand you can trust.

  • Ideal for marine and other harsh environments
  • 1-9/16in (40mm) Wide laminated brass body offers maximum corrosion resistance
  • Hardened steel shackle for extra cut resistance
  • Dual ball bearing locking for maximum pry resistance
  • 4-pin cylinder helps prevent picking