Chipboard, from which almost all cabinet furniture is made, is fragile. Everyone knows how inconvenient to transport Soviet furniture. It must either be disassembled completely, or in the assembled state it must be moved very carefully, since the screws can easily be pulled out of the seats even with light loads. This is explained very simply. The screw design itself was impractical. The slots quickly licked, preventing the assemblers from tightening the joint qualitatively. A hammer came to "help" with which they screwed up a screw, breaking a channel cut into threads. Modern elements of connection joints, which include furniture confirmations, are devoid of these drawbacks.
What is a confirmation, what does it serve
Confirmate is the same screw that has its own design features. The body of the screw is more massive, made of high quality steel with a coating against corrosion. The brand of material allows the screed not to break during twisting and under bending loads. Self-tapping thread with a wide pitch. The hat has a countersunk design, and the screw head is elongated. The slots for the tool come in two versions - for a curly screwdriver and an Allen key. There is no habitual sharpening at the end, it is stupid. There are modifications of Euroscrews in which the cap has a cutting surface.
Single-element screed (confirm) is suitable for joining wood billets, plates made on the basis of wood waste (OSB, chipboard, as well as fiberboard, MDF), and plywood. In addition to connecting the elements, the Euroscrew performs a frame-forming function, because it replaces the traditional corner, withstanding all bending loads. Furniture confirmations are supplemented with special plastic plugs. They mask the visible part of the hat to the color of the furniture.
Confirmate: sizes
As mentioned above, confirmations come with different types of splines. The Euroscrews are coated with galvanized, nickel or brass.
The range of screed sizes is presented below. The first digit shows the diameter of the threaded connection, and the second shows the length of the screw body. Designations are expressed in millimeters: 5.00 x 40.00; 5.00 x 50.00 6.30 x 40.00; 6.30 x 50.00; 7.00 x 40.00; 7.00 x 50.00 7.00 x 60.00; 7.00 x 70.00 The main, widely used size is 7x50 confirm.
What is the advantage of connecting parts using confirm?
Confirmate sizes are different. This is a relatively inexpensive fastener that has several advantages:
- allows you to quickly and reliably connect parts;
- does not require special skills in work and complex assistive devices;
- sensitive to the material - does not destroy it;
- able to withstand loads on separation and bending;
- cabinet furniture on confirmations can be assembled and disassembled without destroying the seats.
Confirmation technology
It should be said that under the confirmation the sizes of the holes are different. They must be drilled with three different diameters - for thread, under the head and under the pot. Therefore, there are two technologies for creating holes:
- In the first case, you can use a conventional drill, but you have to take three different diameters. First you need to drill the full length of the tie under the thread, then a slightly larger diameter under the head and, finally, under the cap flange. The diameter of each drill, of course, depends on the size of a particular confirm. This method is inconvenient and time consuming, although it may be suitable for small volumes of work.
- The second option is more professional and adopted by qualified furniture assemblers. There is a special drill for confirm with a step mill. Such a tool at the same time drills all the holes and makes a selection under the blind. Requires the use of an electric drill in high speed mode.
Euroscrews connect parts at an angle of 90 degrees. In order to make a joint, it is necessary to fasten the two parts together with the help of an angular clamp , as they should be connected according to the scheme. Then you should drill a hole for the confirm screw through the plane of one part into the end face of another. Next, screw the screed with a screwdriver. Here is the connection and you're done.
How to avoid mistakes when working with Euroscrews
Despite the simplicity of the fasteners, you still need to know a few tricks in working with confirm. This will help to avoid such unpleasant situations when the connected parts are shifted from the desired position of the joint. Sometimes a defect does not have serious negative consequences, except, of course, the aesthetic appearance of the product. But it happens that these oversights lead to difficulties in functioning, for example, they overwrite drawers, cracks appear, and some details do not enter the openings. Therefore:
- Having drilled the channel, using a drill for confirm, you do not need to rush to immediately screw the screw completely. At the moment when the head is about to enter the hole, it is necessary to clearly fix the parts in the desired position and, holding them, tighten the screed to the end.
- If the plate material is loose, for reliability it is worth treating the screw thread with glue.
- When assembling block structures, one should not rigidly fix the side walls until the free movement of all the boxes is checked.
Conclusion
For those who only want to learn how to assemble furniture with their own hands, the ideal option for mastering this business is to apply a confirmation. The dimensions here must be maintained as accurately as possible. For the ends of the parts to be joined to be even, you need to have an exclusively right angle with respect to the plane. Then the assembly of furniture with European screws will simply delight and captivate.