Construction work always require a large number of different fasteners. The simplest and most convenient option are self-tapping screws. But some models can be fixed in the material only after drilling. To make such work more quickly and comfortable, you can use special Samores with a drill. Today we will talk about the features of such products and what sizes and species they can be.
Self-tapping screws with drills, as a rule, are used to fix metal structures. They are most often produced with a sharp tip with a thread of a small step. Requirements for the quality of such clamps can be found in GOST 11650-80.
These fasteners allow you to make a metal structure as strong as possible and durable. They tightly fasten metal sheets. In addition, these self-tapping screws are required covered with special protective applying, which prevents the formation of corrosion on the surface of the locks. The most common options include substances that create galvanized coating. But also exist models treated in phosphatated Compositions.
The design of self-pressing with a brown or with a drill consists of three main elements:
- pointed tip;
- Thread (its turns go along the entire length of the metal rod to the hat);
- Hat (it serves as a support, so that the element does not enter the material too deep).
Review of species
Self-shot tip can be classified by different Signs. So, depending on the type variety, they are divided into the following Models.
Hexaging Head Products
Such adaptations are externally similar to ordinary bolts. But they Different with rare screw threads and a slightly sharpened tip. These samples are usually taken for fastening large massive wood structures.
If you use them together with dowels, then they are suitable for concrete surfaces.
Fastening with press puck
These fasteners Different with an enlarged area of contact area of the Hat Square. The press washer allows you to closely press wooden or metal boards (but their thickness should not exceed 10 millimeters).
Captive head locks
Most often they are used to attach wooden sheets, but they can be used for metal. These types are considered universal options, they have a middle step of the thread, their heads are distinguished by a special strengthened focus, But when they are fixed in the material, you should not use much physical effort.
As a rule, such types are produced with a cross-shaped slot that allows you to fix the item with maximum accuracy.
Fixators with hemispherical head
Similar options for fasteners also can be attributed to the universal group. They have a strong pointed tip. Models are considered The most suitable option for fastening a metal frame to a wooden crate. They can be taken and to attach profiles to each other.
Samples with a hemispherical design are often additionally produced with a press washer that allows you to make a slightly fastened material with the base, provides more reliable and durable fixation.
Similar types of fasteners can be used to attach metal profiles, mainly those produced from aluminum or soft alloys with aluminum. On the head there is a small slot of a cross-shaped form, such an element makes it possible to apply the screws for powerful screwdrivers. The central rod of the product has a dense thread of the same type.
The tip of the details is strongly pointed.
Also self-tapping screws with a sharp tip can classify depending on what material they can be used.
Fasteners for wood, lining have a rare thread in the form of thin screws. Wooden products are considered soft and more appropriate to the processing, so they do not need too sharp screws for them. Fasters can be inserted in the surface and without prior drilling, but the screws with a drill can significantly speed up this process, make it simpler.
Often such self-tapping screws make with a white or yellow head.
Similar options allow you to fasten the chipboard and MDF boards, of which the furniture structures are mainly manufactured. Fixing elements have a traditional length of 50 millimeters. Hat hexagon.
She has a special groin niche under the hexagon.
Such screws with a drill have a hexagon hat and a special rubber layer-gasket. The last element plays an important role, since it is due to it that it provides sufficient insulation from a large amount of moisture, it also acts as an amorticing compound seal.
Roofing types can be produced in a wide variety of colors, in this case the choice will depend on the color gamut of the roof.
These Special tip screws have a hats with special grooves. They may have a star, multifaceted form.
Standard household tools Anti-vandal screws will not be spinning.
Self-tapping screws also differ from each other and by type of thread.
- Large thread. As a rule, it goes along the entire length of the metal rod and has a rare step. The model will be able to suit for working with soft materials, including with different types of wood, plaster and plastic.
- Average. This thread is found in universal types of self-tapping. Such models can fix almost all materials.
- Frequent two-way carving. This type is suitable for working with thin sheets of metal. At the end of the rod there is a thin sharp tip.
- Asymmetric thread. It is often used in production, in domestic conditions it can be taken to build furniture structures.
- Variable carving with notch. This type is applied in cases when it is necessary to attach products to a brick or concrete surface, without using a dowel.
Before buying self-taps with tip it is worth paying special attention to their Size, After all, the quality of future work depends on these characteristics. In addition, when choosing you need correctly Correct these parameters with dimensions of the material being processed, with the type of surfaces (wood, metal, plasterboard).
On the Internet, you can see the tables in which the standard dimensions of various sams are indicated. So, their length is most often varied ranging from 13 to 51 mm. The diameter of the head can be approximately 7 mm. The diameter of the press washer reaches 10-13 mm. Nono essentially model possessing non-standard sizes. So, the length of the models intended for roofing may reach 150-170 millimeters.
Tips for choosing
Before buying suitable screws with a drill, pay special attention to some Selection rules. First consider for what material you need fasteners. So, for the processing of wooden products, you can pick up samples with rare threads, for metal objects it is better to select models with frequent pointed thread.
Also before purchasing carefully look at Dimensions Self-timers. For thin materials should not be selected too long models with a large diameter. Recent options can be suitable for fasteners of wooden or metal sheets of small thickness. Larger varieties are more often used for massive solid structures.
For the installation of the roof it is worth buying only roofing varieties. They provide maximum sealing of recesses.
All these models are equipped with a durable press washer.
Roofing screws with a drill are produced With Hats Processed with Special Polymers, which create a special protective coating. More often they have a pressed pillow made of artificial rubber. This processing allows you to apply these fasteners for outdoor installation. Roofing models also differ in size, they must be selected depending on the thickness of the roof.
Carefully review the screws. Their surface must be absolutely smooth, without curvature. There may be even small irregularities on the thread, such products will be able to spoil the material being processed or simply lead to the formation of a large amount of garbage during operation.
Check that the tapping screws are covered with special protective applications. Such formulations allow you to prevent the formation of corrosion on products. The most optimal variants will be substances that create galvanized or phosphatized coating. Type of tip also plays a big role. Models can be equipped with pointed black elements that have passed phosphating, or light galvanized ends.
Sometimes tips are subdivided into two more types: just a pointed model or the driving.
- The first option is used for fastening profiles to each other. It is distinguished by relatively small sizes.
- The second option is taken when pre-drilling is required, or when installing a dowel.
Purchase better self-tapping screws made of durable machined metal. Most often they are created from different types of high-quality steel. They will be able to easily enter the material and do not bother. Poor-quality samples made of soft metal alloys will not be able to live for a long time, they are often deformed already during the installation process.
So that the screws with the drill could firmly keep in the material and ensured solid fixation, follows follow some rules on their installation. If you attach metal profiles, then the screws are better gradually screwed, and not to score. Screw the screws with a certain step.
The thicker it is metal, the greater the load on the design. Parts for metal are produced with the highest possible tip, so it’s not necessary to warm up the material, drill separately an additional hole is not necessary. Quality models will be able to fit tightly in the subject without wondering.
If you install the roof screws, then you can hit the hammer on them a little. Do it need carefully so that they do not get.
Wood models are often just gradually driven by the same tool.
What metal can be drilled by a simple screw with a drill, you can learn from the video below.