I found this chart for american locks it gives you a manufacturing date and info. I'm looking for similar charts for pad locks.
first letter is the month of manufacture and the last two letters are the year.
January = Z
February = Y
march = X
april = W
May = V
June = U
July = T
August = S
September = R
October = Q
November = P
December = O
LAST TWO LETTERS
1= N
2= M
3= L
4= K
5= J
6= I
7= H
8= G
9= F
0= E
EXAMPLE... UFI = JUNE 96 MANUFACTURING DATE.