Secondary door locks can take several shapes. Lock and safety bars are the most basic of door locking mechanisms and as such they are easy to build and install. The door-mounted twist lock tends to be more complicated than sliding bolts and swinging latches, but they can also be designed at home. No matter what kind of door lock you choose, the process of doing it on your own will require some DIY skill and some carpentry tools.
Drill a hole in the pillar stile that runs along the opening edge of your door. The hole should be along the center of the stator and should be 33/64 inches in diameter. Cut a half inch thick piece of work in your secondary door locks, using a table saw. Cut the wood into an egg-shaped oval, with one end larger than the other. The spinner should be long enough to protrude from the door stile at least 1/4 inch when installed and should be about one inch in diameter at its widest point.
Drill a half-inch hole through the center of the wider end of your spinner using a little bit from step 1. The hole will act as the shaft on which the spinner stays inside the door frame. Place the spinner against the secondary door locks so the two holes are erected. Select the size of your spinner on the stylus with a pen. Carve a space inside the door stile, using a hammer and miter iron, where the spinner will be mounted. Drive your chisel at the opening edge of the stables and cut an insert deep enough to hold the spinner long enough to allow it to rotate freely. The ideal size is about 1/16 inches longer than the spinner itself.secondary door kocking mechanism, secondary door locks, single side door key locks