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Medeco 54-51500-00 all-weather padlock with black body cover and satin brass cylinder

Medeco

Medeco 54-51500-00 54 System All Weather Padlock 5/16 x 1-1/8 UL437 00 Keyway

SKU CH-5KDB-0G4JW MPN 54-51500-00

UL437-listed all-weather padlock with boron alloy shackle and pick-resistant Medeco cylinder

  • Lock keyingKeyed Different
  • Surface finishStainless Steel
  • Sold asBox
  • UL437 listed for verified high-security performance
  • Baron alloy steel shackle resists cutting and pulling attacks
  • Hardened stainless steel inserts defend against drilling
  • Triple locking action makes the lock virtually pick proof
  • Weather-resistant design suits indoor and outdoor use

All-Weather Padlock for High-Security Needs

The Medeco 54 System padlock is built for indoor and outdoor use where strong physical security is required. Its weather-resistant body cover protects the mechanism from moisture and corrosion. The 00 Original high-security keyway provides patented key control against unauthorised duplication. This lock suits gates, storage units and perimeter doors needing UL 437 listed protection.

Sustained Resistance to Physical Attack

The boron alloy steel shackle delivers high tensile strength to withstand prolonged pulling forces without snapping. Hardened stainless steel inserts inside the brass cylinder defend against extended drilling attempts. The triple locking action engages at three independent points, maintaining integrity during sustained manipulation. These features combine to resist cutting, pulling and vandalism over time.

Upgrade from Standard Weatherproof Padlocks

This model replaces common laminated or shrouded padlocks that lack UL 437 listing and patented key control. The jump is worth it when key duplication must be legally restricted and the shackle must resist determined cutting. It is not for buyers needing a combination mechanism, a longer shackle clearance or a master-keyed system across different keyways.

How it compares

Measured against everything we stock in Door Lock Sets & Deadbolts, at today’s prices. Recalculated every night.

Price $251.99
Pricier than about 87% of the 2,145 comparable items (median $55.99).

Specifications

Product
Brand nameMedeco
Model name54-51500-00
Size & build
Surface finishStainless Steel
More details
Lock keyingKeyed Different

Questions about this item

Does the stainless-steel finish and UL437 listing mean the padlock stays reliable when left outdoors all day?

The 54 System All Weather padlock has a stainless-steel finish and a standard black body cover designed for indoor/outdoor weather resistance, and it carries a UL437 listing confirming high-security performance in exposed conditions.

What key do I need to operate the 00 Original High Security keyway on this padlock?

The padlock uses Medeco's 00 Original High Security keyway, so only a Medeco key cut to that specific keyway will operate the cylinder; keys from other brands or keyways will not work.

Will the 5/16" x 1-1/8" shackle fit the existing hasp on my older storage unit?

The shackle measures 5/16" in diameter with a 1-1/8" vertical clearance, so it will fit any hasp or chain link that accepts those dimensions; measure your current hardware to confirm compatibility.

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