The difference between u-shaped nail and doornail for woodworking

The difference between U-nails and doornails for carpentry lies in their materials and uses. The specific differences are as follows:

U-shaped nails, also known as turf nails, are specially used to fix artificial lawns or buildings. U-nails are usually made of iron.

Common specifications of U-shaped nail: wire diameter: 8Ga, 10Ga, 1 1Ga, 12Ga,

Length of one leg: 15CM, 20CM, 30CM.

Inner diameter (distance between legs): 2.5 cm, 3 cm, 3.5 cm and 3.5 cm.

Surface treatment: natural color of iron wire, zinc plating, plastic spraying and painting.

Features of doornails: In ancient buildings, doornails are only used on wooden doors. Some experts believe that the doornail originated from Mozi's Zhuo Yi, which is two inches long and one inch long, that is, it is nailed into the door panel by about one inch. It was originally used to prevent the enemy from attacking the city with fire, so it was covered with mud to prevent fire. Door studs are usually made of copper.

The general characteristics of U-shaped nails are used to fix artificial lawns or buildings;

The doornail has several functions, one is decoration, the other is representing rank, and the other is reinforcement.

The earliest doornail only reinforced the door panel. Because a door is often made up of several boards, it is easy to spread out over time. In order to avoid scattering, I put a belt on the door panel, so I reinforced it with a doornail for fear that the belt was not strong. Later, the doornails were made more and more neat, and the number of nails became a sign of grade.