Kaba Ilco is an international manufacturer of keyblanks, key machines, solid brass replacement cylinders and door hardware. Zinc Rim Cylinders have a 5 pin tumbler mechanism. They are furnished with a trim ring, mounting plate and screws. Model 605KW is standard and is rekeyable to match Kwikset, Arrow, Weiser or Segal keys. This Cylinder comes keyed as is when purchased, all rekeying must be done by the user after the purchase.