Regular Key Cylinders

One Side Key Cylinder (OSK) as the name suggests, locks from one side and can be unlocked with a turn of the knob from the inside. Best used for moderate security needs such as storerooms, washroom doors and smaller internal doors and front doors.

Both Side Key Cylinder (BSK) ensures controlled access from both sides as it can be locked from either side of the door, providing dual security. Best used for providing additional security for doors such as balcony doors and bedroom doors.

Coin and Knob (CNK) is a type of lock commonly used on doors like restroom or utility room doors where privacy is needed, but security isn’t a big concern. On the inside, you can lock or unlock the door using a simple knob or turn piece. On the outside, instead of using a key, the lock can be opened with a coin, screwdriver. This makes it easy to unlock the door in case of an emergency, without needing a key.