Serial Number American Lock Combination Chart

Typically american lock combination locks are registered to a specific school or business but if you re unable to locate your lock information you can send a letter to american lock requesting a new combination chart.

Serial number american lock combination chart.

In the early 1900 s john junkunc of junkunc bros. The american a400 fits lockers with a padlock eye of at least 5 16 8mm diameter. American lock invented the first combination lock because of frequently misplaced keys. For my lock the last.

Later too and you may need to try up to 100 combinations later and it will be pretty frustrating when none of them work. A combination of 22 10 17 is the same as 22 11 17 or 22 9 17. Turn the dial clockwise past zero three times and leave it set to zero. These locks are stamped with a serial and control charts are provided.

All you need is a dull knife and a couple flathead screwdrivers a small one and another really small one. Because american lock only sells combo locks in bulk mostly to schools and companies each order of locks comes with a combination chart. Serial numbers may start or end with a letter in order to designate the series. The serial number on the padlock below is 903744 and the matching combination is 26 08 22.

To provide enhanced security long term master lock discontinued imprinting a serial number on the lock body of combination locks sold through retail locations. Thankfully it s not the heat death of the universe the end of the world because american lock and master lock provide a service for when you ve lost your combination. For american lock products call 1 800 778 2217 match my key aluminum steel brass stainless steel government hidden shackle combination. Modulus is a lesser known mathematical operator that just means remainder the magic number with master locks is four.

This makes master lock combination recovery a lot easier. To crack a master lock combination lock download a lost combination form on the master lock website. Make a list of possible last numbers of the combination. Once you ve completed the form mail it to the master lock warehouse along with a photo of the lock and the lock s serial number.

The illustration shown to the right illustrates the slop in the mechanics of the lock. The combination for a master lock combination padlock may be identified by looking up the serial number located on the back of the padlock in this code book. Try to find this chart before attempting to retrieve the combo online. You need to find the modulus of the last digit of your lock and four.

Then fill out the form and pay to have it notarized. Losing the combination for an american lock combination lock can be quite frustrating but steps can be taken online to retrieve the combo.