What is Screw?

The screw is a short and sharp-pointed metal tip having helical threads running around its long shaft with a slotted head, which are used to join objects together by twisting them. Screws are types of fasteners, which are used to fasten materials using tools such as hammers or screwdrivers.

Screws are often manufactured as self-threading, which means the thread cuts into the material when the screw is turned. This creates an internal thread that allows the fastening material to be pulled together and prevents it from being pulled out.

These are available in a variety of shapes and sizes, and each has different functions. Screws are usually round, flat, short, long, and more, but it will be difficult to identify or know about them for your project because they are available in various types.

Types of Screws

Here are 10 main screw types based on size, material, and screw head.

1.      Wood Screws

Wooden screws are usually made of bronze, brass or steel and are used especially when working with wood.

The easiest way to identify them is to have them without threads on the top and thick threads on the pointed ends. Just make sure you use the right kind of drill bits to make the first pilot hole so you don’t crack your boards.

This design serves more than just one ID – it allows the screw to easily penetrate the wood fibres and does not cause too much wear and tear (minimizing resistance and reducing distribution).

Wood screws can have flat, oval, or round heads. Flatheads are an important fastener when you need a flush, hidden or sitting on a wooden surface.

2.      Chipboard Screws

This screw is also known as a twin fast screw and particleboard screw. Chipboard screws, as the name suggests, are self-tapping screws specifically for chipboards.

With thicker threads, and twice as much thread pitch as standard wood screws, these screws make it easier to operate on chipboard, particleboard and fiberboard of different densities.

Due to the considerable thread of these screws, they can also be easily inserted using ordinary drive bits and a hand screwdriver.

3.      Mirror Screws

These specials help you attach the glass to the walls without any extra brackets. The mirror patch features a cut countersink head with threaded holes. This patch enables the included cover caps to be screwed on, making installation easier and a more stylish finish.

Mirror screws contain tapered rubber grommets. They also prevent the patch from being pressed directly into the mirror.

Screws and covers are all coated with zinc, keeping them resistant to rust. This means that these screws can be used without any hassle in humid environments such as bathrooms.

4. Drywall Screws

These screws are for drywall panels and come in two basic types – coarse threaded or W-type screws used to attach drywall to wood, or fine threaded or S-type screws that dry metal roots. Used to attach to the wall.

The latter also comes with its own drilling tip, so you don’t have to drill in advance. These screws cut drywall like a hot knife through butter, thanks to the extremely sharp tips that reduce tearing while walking fast.

There are many different types of drywall screws, including those coated with zinc, phosphate, or ceramic, and some screws intended to reduce corrosion. They also work well with drywall replacements.

5. Self-Tapping Screws

These screws are known as self-tapping screws; they are screws that eliminate the need for pre-drilling, thanks to the threads that facilitate the drilling of holes during screw insertion. These screws can be drywall, wood, and sheet metal screws.

However, the problem with these screws is that pulling them out results in them being removed. When hardened, they are easily removed.

6. Sheet Metal Screws

This screw can be used in any scenario that requires a combination of different materials, be it rubber, plastic, metal, or any other type of plywood.

Therefore, these screws are available in many types and sizes and the material you are working with will tell you which screw to use. These screws are extremely useful thanks to their fast, customized threads that ensure a strong bond.

7. Masonry Screws

They are also called ‘anchors’ because the masonry patch can be easily distinguished from the rest of their family by the lack of a pointed tip. Therefore, the purpose of masonry screws is to boreholes and not for that, pre-drilling is required (although a normal drill works, a hammer drill is recommended).

These screws are used to attach concrete to wood or metal. They are used to attach wooden floor plates to basement floors or concrete foundations.

The masonry screw has Phillips heads or embossed hex heads that require special hex-head bits that match (the packaging will tell you which bit and size are required).

8. Hammer-Drive Screws

Hammer-driven screws designed for heavy-duty fastening are also called U-drive screws, or bus drive screws. Their round head and unique structure ensure that they are strong, durable and long-lasting for you.

Hammer drive screws are commonly used for marking walls, nameplates, or other similar purposes. They also have multiple start threads, and large helical angles, as well as a pilot point that is not threaded.

You use a hammer, malt or hammer to drive these screws inside quickly and permanently. You need a small pre-drilled pilot and the screw should be made of a material that is harder than the part in which you operate it.

9. Eye Bolt screws

In an assembly, eyebolts are frequently the first rigging fitting used to raise or suspend the weight. Whether it be by screwing into a steel tube, a wood pillar, or directly into threaded holes.

There are four types of Eyebolts Screw. These are-

Regular Eyebolt

Shoulder Eyebolt

Lag Eyebolt

Machinery Eyebolt

10. Hex cap Screw

As its name suggests, it has a hexagonal head, and the lower part of the load occasionally has a washing face.

They are helpful in many construction situations, particularly when fasteners must adhere to exact engineering specifications.

Find more information about screw :

https://www.huahanmachinery.com/eyebolts05.html