Screws on wood with dimensions: table and prices

Screws on wood hardly give way in popularity to any other fasteners. Without them there would be no strong wood furniture, frame supports, doorways and many building designs, including those from drywall (By the way, if you're ever looking for special fasteners for these purposes, they are not). Screws - a reliable, but at the same time simple and accessible tool. In today's review we will tell HouseChief about how to choose the right screws for wood, and tables size and price will help to orient in their variety and choose the right option for a particular type of works.

Advantages and disadvantages of self-tapping screws for wood

Screws emerged in Russia back in the sixties of the XX century, the basis was taken the classic bolt. However, if you look closely, he has carved covers the entire surface of the rod, while the screw - no. And the material used for the improved fastener, more durable.

There are varieties of screws, which are used in the materials of different densities, such as metal, plastic and wood. Sometimes, these fasteners are also called "hardware", short for "metal product".

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Mikhail Starostin

Team leader repair and construction company "Home Premium"

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"Screws for wood suitable for installation Fibreboard, OSB and Particleboard. For fixing the sheets of drywall fasteners used certain size - 3,5 × 25 mm ".

If we talk about the advantages of such a fixture, then they are clear:

1. High strength and stiffness compound.
2. The possibility of multiple use.
3. Adjust the desired depth of screwing.
4. You can do without electricity, because the screw can be screwed into a simple Phillips screwdriver.
5. Versatility. No need to use additional elements (washers, gaskets).
6. High speed of work.

The only drawback is considered to be a certain fragility screws (Hardened steel becomes brittle with time). Fixing, especially with phosphated coating may crack under the influence of even a small effort. And it can not be seen from outside. In contrast to the self-tapping screws, nails do not have such a hidden defect.

Types and classification of screws

The key difference screws on wood - a thread pitch. It is this feature distinguishes the fasteners from those that are intended for metal structures.

This feature greatly reduces friction, which allows to screw the screws without much effort with a simple screwdriver. There are many classifications of screws on wood, depending on the characteristics of the surface fastened, their shape and thread type. Let us consider each of them.

Interesting fact! There are extremely small sundries. They got an interesting name - "seeds" because their appearance resembles the shape of a sunflower seed. In some embodiments, they are also called "bugs" due to relatively large in relation to the length of the cap legs.

Due to the fact that not everyone is aware of the different types, and, consequently, the mission "consumables", there is a lot of problems: broken screws, the work process is complicated and prolonged.

Depending on the nature of the outer surface treatment

No matter what size metal products, short or long, it necessarily covered with a special surface, which protects the metal from oxidation, and further strengthens it.

Black (oxidized) screws for wood

Sometimes referred to as DG screws - Drywall tree. Due to the secret hat they are used for internal painting and decorating. virtually invisible after screwing a fastener and responds well to bonding agents, leveling works.

Black screws on wood

Design features screws DG:

1. sharp tip. This feature saves time during installation work.
2. Rare thread pitch. The most commonly used on rocks unsteadily, allowing twist screw easily and effortlessly.
3. countersunk head.
4. hardened metal.

There are two subspecies of black screws:

1. phosphated. This is a special coating, which gives a black matte color. This is the most fragile self-tapping screws are used for the common types of jobs with low pressure. Corrosion resistance have low, so should be used in areas with low humidity.
2. oxidize. These screws are subjected to further processing of the magnetic oxide, more wear-resistant. In appearance they are not matte, and glossy.

Important! There is a kind of self-tapping screws GM - drywall metal, they have, on the contrary, a frequent step that makes the wood surface is more loose and sloppy. Under the influence of shelf loads with properly chosen self-tapping can be stopped.

Moreover, threads can be applied to the entire length or partially coated product. There are certain parameters: length of screws 55 mm are complete with screw thread, from 65 to 75 - in this case 50 mm thread length, and if more than 90 mm screw, this figure rises to 60 mm.

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Mikhail Starostin

Team leader repair and construction company "Home Premium"

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"The softer type of wood, the more rare step of using the screw. Then the surface is not "hill", and for high-quality fasteners enough to be just a screwdriver. "

Most often, the black self-tapping screws are used in conjunction with the dowels. Among the disadvantages referred to master their low resistance to moisture.

Zholtopassivirovannye and galvanized wood screws

This type of corrosion resistant metal products. It was their most often used as decorative fasteners. Among the shortcomings - enough high cost of metal and the softness, due to which they can bend during careless operation screwdrivers.

Galvanized fasteners often found in furniture designs. They have silver color and also hardened. But they are almost invisible to any structures.

galvanized wood screws

Depending on the form

Clamps of this type are not only the coating composition and the width of the screw "pitch", but also the shape of the cap and its structure. Depending on the characteristics of works shared by several species of its execution.

Screws on wood with a press washer

Press the washer provides a precise and durable mounting of thin sheets, for example, wood or plastic panels, most of these are slot screws Phillips screwdriver. Most often, self-tapping screws to press the puck on wood have a sharp tip and does not require additional drilling. The length of the screws of this type ranges from 13 to 76 mm and the nominal diameter - 4.2 mm.

Screws on wood with pressshayboy

Screws for wood with hexagon head

In appearance, these screws resemble ordinary screw hex. This screw is sometimes called "gluharom".

They are used where required sufficient power load, for example, for assembly and fastening of trusses.

Screws for wood with hexagon head

Furniture screws, SCREW

Konfirmat - view of the screw, which is familiar to anyone who has ever collected furniture from IKEA supermarket. Such metiz has a flat head and a concave hole for a special Allen key.

Furniture screws, SCREW

Depending on the thread type

Depending on the type of thread such screws come in several variations:

1. Full thread. The simplest type of fixture. The thread in this case is the entire length of the screw. This type of fastener the maximum possible and creates a strong bond with the wood structure. To withstand large longitudinal load. These screws can easily be screwed into the wood at different angles.
2. Screws with ribs. The hat of the screw has a cutter, while twisting it increases the diameter of the hole and allows you to effortlessly drown it in the tree. Sometimes, screws are equipped with middle cutter.
3. Adjustment screws. They are used for installation of doorways, window frames and structures. They differ countersunk head with special grooves and sharp tip. Screws of this type allow for the adjustment of structures.
4. insulating screws. Such screws allow secure crate in the rafters, beams, bolted to the rail grid. Often have two types of heads: semicircular with a press washer or cylindrical.
5. Screws flyugel. Used for mounting the wooden lath. At the end of the screw auger usually located, which allows not to drill a hole in advance.

Dimensions of screws on wood - table

Screws on wood available in various types and sizes, we present the main ones:

State standards for wood screws

According to the parameters of GOST, screws received certain markings on a tree - they correspond to a single standard for the number 1145. This guest was passed back in the 80s of the last century. Since then, he has not changed.

Standards accurately standardize fastener manufacturing process up to the size of its head and inflicted coating. Thus, you can know exactly which screw is needed for a particular purpose, and buy it at any point in our country.

How and what fix screws

Among the variations of tools with which great "kontachat" screws, the first place is, of course, screwdriver.

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Mikhail Starostin

Team leader repair and construction company "Home Premium"

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"When working with hard wood species can be useful pre-drilling. In this case, Pick up drill diameter, exactly coincides with the size of the screw. For Fiberboard - less than a millimeter, for soft wood and chipboard - less than 3 millimeters. "

Many types of self-tapping screws can be screwed by means of a conventional Phillips screwdriver. In this case, it is better not to exert extra effort and twist smoothly and gently. Remember oxidised screws are very fragile.

Safety precautions when working with the tool

Consider a short set of rules work with the tool:

Illustration	Description of the action
	When working with screwdriver should never put his hand under the instrument. Even if you feel that you are in control, a slight slope, the tool may slip and you get injured.
	Never attempt vsverlit screw in a knot. Such areas are often the most dense. In addition, the site of attachment will not be called strong. It is better to choose a location slightly to the left or slightly to the right.
	Always hold the tool precisely in line with the self-tapping screw-no matter the angle you are performing the work or not. In relation to each other, they have to create a single line.

How to choose the wood screws - recommendations HouseChief.ru edition

First of all, choose the screw based on the density of the surface held together or drilled.

Relate surface width and size, as well as the anticipated load. When attaching drywall to observe the required step - screws must be fixed no further than 7 cm from each other. Better to choose screws with anti-corrosion treatment. If necessary, do not be lazy and make the pre-drilling.

What is the difference screws for wood and metal

Wood - a softer and more porous material, which in itself is already a good docking platform. The main thing, to choose an adequate step for a specific type of wood.

At what price you can buy screws on wood - an overview of current proposals (cost per 1 kg)

It is most convenient if you buy a large batch, take the weight. But if you choose something specific for a single fixture, it is possible to select and individually.

kind of self-tapping screws	Price per Unit. (As of June 2018), rub.	Price per kg (as of June 2018), rub.
	1.8	180
	1,9	195
	2	200
	2,1	210
	1	8
	4	500
	1,23	220
	1,38	150

Should you buy screws wholesale, the question is open. Of course, if you do the repair work, the Consumable never be over. On the other hand, the average person is not likely to need a few bags of "grouse". Especially the price of these fasteners is not so high to buy them in large quantities. If you have any questions on the topic, ask them in the comments.