| The Port-A-Lock is a great item for adding security to knob locks, without a big price tag. You can just replace the standard knob lock strike plate with the Port-A-Lock. No new holes to drill!
When in the unlocked position, the machined brass pin stores in the opposite side. When you want to use it, just slip the pin into the slot, and it's securely locked! Fits L & R handed doors!