Made by McGard Navi-Lock, Warning Sticker These are tapping screws with a special flower-shaped screw hole. They can be used not only for installing navigation systems and audio equipment, but also for securing display cases for store merchandise and secret stash shelves. These are highly reliable products adopted as genuine options by various automobile dealerships. And they're expensive! This is a bargain price, don't miss out! For peace of mind in case of loss, there is a spare key code number. Shipping will be on (Mon) and (Thu).