Ring shank nails
These nails have rings on the shank to create more holding power than those with smooth shanks. Ring shank nails may be similar to screw nails except the flat head. The ring patterns vary according to customs' intended applications including shallow rings and deep rings. With ring shank design, these nails provide a tight grip, additional resistance to pop-out of the wood and have proven to be the best solution to working with soft wood. While other conventional nails are pulled out from lumber easily, this one is hard to remove without damaging the wood. The removal will leave a large and ragged hole if the nails are pulled out roughly.
The sinker nail derives its name from its flat, tapered head that allows it to be driven flush with the surface of the wood, thus "counter-sinking" into the wood. In addition, the checkered, or grid embossed, head surface prevents slippage of the hammer strike. Widely used for general construction, carpentry and framing projects, its vinyl-coated shank provides smooth driving and secure holding strength.
The most common use for finish nails are to attach trim and molding to a house. The reason for using these types of nails are for the fact that they can be sunk into the trim or molding. This leaves a hole to be filled in with putty to make the trim or molding smooth. A finish nail is small and has small heads. For finished nails, just like any other nails, weight is determined by what is called "pennyweight". You can also get different gauge sizes since nails are made from steel wire. These types of nails are most commonly used for interior finish work; however, they can be used outside.