The bullet head is one of the most versatile and common types used in woodwork. It is a general purpose component that comes in a range of sizes but the head allows for it to be punched below the timbers surface to conceal it. They are commonly used in framing, furniture, wood paneling and planks because of their features. 

The Weathertex or Ring Shank is more suitable for outdoor use because it is galvanized to prevent rusting and staining. Its head is countersunk similar to a screw so it works well when hammered into timber and it is also suitable for wood framing. 

Flathead nails are very common and are most likely to be seen on fences, softwoods and thin lumber. Their flat head makes it easier to hammer them straight and they have more surface area so it gives increased accuracy when hammering. 

Timbergrips are similar to screws as they have a specially designed head which allows them to be hammered below the wood’s surface. They also have a thread to increase their holding power. This type of nail is better suited for harder lumber and areas where more securing strength is required like woodwork joints.