Tilt Bar - The vertical bar used for adjusting the louver position.
The tilt bar (or tilt rod) is connected to every louver. Quality shutters attach the louvers and tilt bar with shutter specific staples that are heated, glued, and uniformly inserted into the wood. Some companies cut a channel in the back of the tilt bar and insert a metal strip with hooks. The hooks then loop over the staples that are inserted in the louvers. This method is inferior because the hooks frequently release the staples, and the metal strip often disconnects from the wood tilt bar.
Some companies now offer shutters with a hidden tilt bar mechanism. This feature allows visibility through the louvers without the apparent distraction of a tilt bar. This feature is contemporary and may give the shutters an industrial appearance. The "hidden tilt bar" shutter is available in both synthetic plastic panels and wood shutters. Synthetic shutters sometimes use a connector that is concealed with an aluminum channel in each of the stiles. If the mechanism falters or breaks, the shutters may be permanently broken. The louvers would then not rotate in unison, and render them useless. It is more common for the louver rotation mechanism to be located along the rear of the louvers, which can be repaired if broken. Check with the clear view company selling you shutters to investigate how their shutters are built.
Shutters can also be made with fixed louvers that are not movable and must remain in one position. Generally, louvers are fixed at an angle to block direct sunlight and allow for ventilation. Fixed louvers shutters do not use a tilt bar.
tilt bar shutters
no tilt bar shutters
shutters without tilt rod