How many doornails are there at the entrance of the Forbidden City?

There are 68 doornails at the entrance of the Forbidden City. According to the historical website, there are 40 north gate nails, 40 middle gate nails 14 and 40 south gate nails 14. The doornail on the gate of the Forbidden City refers to the decorative round nail on the door. It is made of bronze with different shapes and profound meanings, and it is one of the important symbols of China traditional culture.