K/A = Key Alike (all locks same key code)
K/D = Key to Diff er (all locks diff erent key code)
NPL = Nickel Plated
BPL = Brass Plated
CPL = Chrome Plated
ALU = Matt Chrome
BRZ = Bronze Plated
Backset = Distance from centre of key entrance to the edge of the lock, where the locking tongue protrudes.