What kind of drill to use for furniture Euroscrews?

A Euroscrew is a fastening element, also called a confirmat, and has been known since the early 1990s. This screw is also called a Euroscrew or simply “Eureka”. The name comes from the Confirmat trademark, under which it is produced by the German company Hafele. In the USSR they learned about confirmation only in 1973.

A Euroscrew is a fastening element, it is also called a confirmat.

Another option is to drill the parts together.

The confirmat looks like a screw with a flat end, but with a countersunk head with six or four edges. It has threads with serrations at the bottom. In the upper part of the screw, near the head, there is no thread because it is unnecessary, since the confirmat is much thicker than the screw and the upper part of the thread does not play any role in the reliability of fastening. Euroscrews for furniture are made from high-strength carbon steel, which allows them to be easily removed from the material if used incorrectly.

The confirmat looks like a screw with a flat end, but with a countersunk head with six or four edges.

After connecting (pulling) the two parts together, they can be adjusted with a rubber mallet.

The advantages of a confirmat over an ordinary self-tapping screw are great, because it not only pulls the parts together, but also firmly holds them from lateral displacement. The connected parts on the screw will not sit tightly enough. Due to the fragility of chipboard, the use of screws does not meet expectations. Chipboard is a rather soft material and the reliability of the screw depends on the place where it will be screwed. Confirmat will hold securely and firmly even if there are pores in the chipboard.

It has threads with serrations at the bottom.

Using it, a small notch is made in the face and end.

Using Euroscrews, you get high reliability of the sections tightened with this fastener. The cost, in relation to any product, is a pittance. Confirmat is easy to install and can withstand heavy loads. The disadvantage is that the fastener is not closed, the cap is visible. It must be covered with a plug or sticker matching the color of the chipboard. Another disadvantage is that there is a certain amount of assembly required to assemble the furniture, often no more than three times, because if the furniture is disassembled frequently, the threads can break.

Euroscrews for furniture are made from high-strength carbon steel, which allows them to be easily removed from the material if used incorrectly.

To avoid chipping, a sheet of chipboard or plywood is placed on the reverse side.

How to connect?

To connect two parts made of laminated chipboard (the thickness of one sheet is 16 mm), a euroscrew is used. One of the most affordable and accessible methods today. To install it you will need:

drill;
drills 4.5 mm and 7 mm or “confirmed” drill;
handle, square, hex key.

The advantages of a confirmat over an ordinary self-tapping screw are great, because it not only pulls the parts together, but also firmly holds them from lateral displacement.

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Otherwise, the confirmation will fall out, or, on the contrary, it will tear the chipboard, and you will ruin the furniture.

It is necessary to tighten two parts with a thickness of 16 mm. We retreat 8 mm along the vertical part of the part and draw a center line and put a dot. We make a hole using a drill with a diameter of 7 mm. On the second part we do the same, only we take a drill with a diameter of 4.5 mm. If you have a “confirmed” drill, the work is reduced significantly, but such a drill is quite difficult to find. All you need to do is make a hole and connect the two pieces together. The use of such a drill is rational in case of a large volume of work and repeated use. It is not advisable to buy such a drill for “one-time” use.

Confirmat will hold securely and firmly even if there are pores in the chipboard.

The main thing here is to maintain all sizes.

When assembling furniture, confirmat 6.4*50 is used. To connect the parts efficiently, the hole diameter should be 4.5-5 mm. and 50mm deep.

Using Euroscrews, you get high reliability of the sections tightened with this fastener.

To connect the parts efficiently, the hole diameter should be 4.5-5 mm. and 50mm deep.

Device Manufacturers

The correct name for a fastener is a single-piece fastener. This term is used to fill in data when ordering and to draw up reporting documentation at specialized enterprises. In everyday life, it is more common to hear other names, for example, “euroscrew”, “euroscrew”.

The word confirmat appeared thanks to the trade name of the Hafele company from Germany Confirmat. This category of fasteners appeared back in the 70s of the last century, but they gained real popularity in the 90s. Since then, products have been produced by many domestic and foreign manufacturers, including the Hafele company, which is successfully operating to this day.

The demand for products in large quantities is covered by Russian enterprises. These are ZAO Izhevsk Furniture Accessories Plant FMS, JSC Metallist and many others. Products from Chinese manufacturers are widely represented on the market, the quality of which is not always at the proper level. But one of the oldest enterprises in China, Haining Yicheng Hardware Co., Ltd. you can trust.

Confirmation sizes

The required parameters are usually calculated based on the external thread.

The disadvantage is that the fastener is not closed, the cap is visible.

When assembling furniture, confirmat 6.4*50 is used.

The most popular sizes of euroscrews:

length: 40 (mm), thread diameter: 5 (mm);
length: 50 (mm), thread diameter: 5 (mm);
length: 40 (mm), thread diameter: 6.3 (mm);
length: 40 (mm), thread diameter: 6.3 (mm);
length: 40 (mm), thread diameter: 7 (mm);
length: 50 (mm), thread diameter: 7 (mm);
length: 60 (mm), thread diameter: 7 (mm);
length: 70 (mm), thread diameter: 7 (mm).

The cost, in relation to any product, is a pittance.

It is not advisable to buy such a drill for “one-time” use.

The main thing here is to maintain all sizes. Otherwise, the confirmation will fall out, or, on the contrary, it will tear the chipboard, and you will ruin the furniture. The confirmation drill also makes a recess for the head. The holes are made strictly according to the markings and the drill must be held parallel to the surface. To avoid chipping, a sheet of chipboard or plywood is placed on the reverse side. An important point: when drilling the end of a part, the drill must be strictly perpendicular to its end, otherwise, if it deviates, the drill will move to the side and the part will be damaged. When drilling into the face of a part, the perpendicularity of the drill to the part is important. To avoid the drill coming off, use a regular awl. Using it, a small notch is made in the face and end. After connecting (pulling) the two parts together, they can be adjusted with a rubber mallet.

The connected parts on the screw will not sit tightly enough. Due to the fragility of chipboard, the use of screws does not meet expectations.

The use of such a drill is rational in case of a large volume of work and repeated use.

Another option is to drill the parts together. This method is not only fast, but also accurate. Only for this it is necessary to securely fix the parts using clamps. This way you save your time and speed up the assembly process.

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To connect two parts made of laminated chipboard (the thickness of one sheet is 16 mm), a euroscrew is used.

If you have a “confirmed” drill, the work is reduced significantly, but such a drill is quite difficult to find.

As a result, the use of confirmation is completely justified. No special tools are needed to install it. All you need to do is order the required number of confirmations. It is unlikely that you will get a high-quality screed the first time, but after making a couple of screeds, everything will work out. As they say, the eyes are afraid, but the hands do.

It is necessary to tighten two parts with a thickness of 16 mm.

On the second part we do the same, only we take a drill with a diameter of 4.5 mm.

It is unlikely that you will get a high-quality screed the first time, but after making a couple of screeds, everything will work out.

Design Features

Euroscrews for connecting furniture parts are a single-element tie. In essence, they are the same screws, only their body is more massive. The confirmation threads have a wide pitch, the head is elongated, and the head has a hidden design. The slots for the tool are different. Some are suitable for a curved screwdriver, others for a hex key. Unlike other hardware, the ends of Euroscrews have a straight cut with a round cross-section.

Using a confirmed hexagon is considered more practical and reliable. After connecting the parts together, you can further tighten them using a hex bit, screwdriver, drill or special wrench. Fasteners for a Phillips screwdriver cannot provide such secure fastening, since it will not be possible to tighten the parts tightly. Subsequently, this will affect the strength of the structure; it may become loose and lose stability.

Confirmats are used to connect parts made from:

MDF;
chipboard;
wood;
plywood.

Euroscrews can replace standard angles. They easily withstand all bending loads. This feature allows the confirmata to perform not only a fastening function, but also a frame-forming function. To disguise the fasteners, plastic plugs (diameter 12 mm) are used, similar to the general color of the interior items. They are made of plastic. There are also special round stickers on sale. The thickness of the plugs does not exceed 0.4 mm. They can be chosen in the same shade as the furniture itself. Interior items take on a finished look, and the Euroscrews on them become invisible. Self-adhesive elements are more common; they are convenient and easy to use.

VIDEO: Confirmation

Modern furniture made of chipboard and MDF is often assembled using confirmatory screws, which among furniture makers are also called Euroscrews or Euroscrews. Before screwing them in, technological holes with strictly specified parameters are drilled in the plates. The process of preparing these holes will be discussed in this article.

The hole for the confirmation is drilled in the thickness of the first part and in the end of the second part, which are joined at a right angle. Along the length it should have a stepped difference in diameters. This is due to the design features of the Euroscrew. Its rod consists of a cylindrical smooth neck and a main threaded part. A hole of a smaller diameter is drilled for the thread, and a larger one for the neck. The fastener also has a countersunk head in the shape of a truncated cone, for which a seat is prepared. In practice, two hole drilling technologies are used.

Furniture ties: laying out the essence

Assembling furniture is a non-trivial task when it comes to non-standard and interesting solutions. But there are clear rules for how the elements are attached to each other. At a certain point, dowels were common, and they are still used until that time. There are other solutions for fixation, which will be discussed in the article.

Using three drills of different diameters

This method is suitable for small volumes of work, as it requires more time. Hole preparation is performed in three approaches:

First step

– drilling through two parts for the entire length of the Euroscrew. The diameter of the drill must be equal to the diameter of the screw body without taking into account the thread. This is done so that the threads can cut a counter thread in the material.

Second step

– expansion of the already obtained hole for the smooth part of the hardware, which should have a tight fit, but not too tight, so as not to split the material. Reaming is performed with a drill equal to the thickness of the neck and to a depth equal to its length.

Third step

– countersinking a hole to deepen the head into the material. This can be done with a drill of a larger diameter, but to obtain a high-quality result without chipping, it is better to perform this operation with a countersink.

Confirmation drill – three in one

Working with a special confirmat drill (cutter) is much easier, since it has a special stepped geometry, and the entire operation is performed in one pass. An additional advantage of using it is that it simultaneously chamfers the countersunk head of the hardware. In fact, it replaces two drills and a countersink of different diameters. In addition, the confirmatory cutter has an insertion part with a sharp tip, which ensures precise insertion of the tool and eliminates the risk of it being pulled to the side at the beginning of drilling.

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Types of fasteners

Furniture ties can be used individually or in combination with others. Some furniture items are designed for special occasions. It makes sense to consider the features of each and the principle of its installation.

Dimensions of holes for confirmation

There are no GOST standards for confirmed screws; they are manufactured according to European standards 3E120 and 3E122 and have a fairly wide size range, represented by the following standard sizes: 5x40, 5x50, 6.2x50, 6.4x50, 7x40, 7x48, 7x50, 7x60, 7x70 mm.

The most common size is 6.4x50 mm

. To drill a hole for its thread, a drill with a diameter of 4.5 mm is used, and for the smooth part - 7.0 mm.

When working with euroscrews of other sizes, the following rule is adhered to: the diameter of the main hole (for the thread) must be equal to the diameter of the rod without taking into account the height of the thread. That is:

5 mm screw – 3.5 mm drill
7 mm screw – 5.0 mm drill

In order to prevent the risk of parts moving during drilling, it is necessary to firmly fix their position relative to each other. The easiest way to do this is with a corner clamp or other clamps.

A short review of the magic drill, if making furniture with your own hands is the most necessary thing. With it, the additive is much faster and more convenient. And the price is 141 rubles. not scary at all.