Master #6121 Weather Tough Padlock with K1 Cylinder

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Master #6121 Weather Tough Padlock with K1 Cylinder

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2-1/8" (54mm) wide laminated steel body for superior strength.
Hardened boron alloy shackle for superior cut resistance.
Removable cylinder can be replaced or repinned.
Dual ball bearing locking mechanism resists pulling and prying.
Body and cylinder covers protect locks from water, dirt and grime.
Heavy steel bodies withstand forcible attacks.

MSRP = $31.96

What we have done here is to take the Weather Tough Master 6121 padlock and replaced the standard 5-pin cylinder with a 4-pin W1 cylinder that we can key alike to match the many other Master Lock K1 keyed products such as receiver locks, trailer coupler locks, etc.

Granted, you lose a little security going from 5 to 4 pins in the cylinder, but thieves rarely attack the cylinder anyway and anyone trying to pick it is going to get really confused since they will be expecting a 5-pin lock. What you gain is a much heavier body and shackle than is otherwise available in a 4-pin padlock and it is the shackle that thieves most commonly attack.

Uses a Master K1 Key and can be matched to many other Master Lock products in our inventory: see our section on "Keyed-Alike Locks".
Master K1 Keyway