Screws for metal with a drill: description, purpose, price

Practically in each sphere of construction self-cutters are used now. Without them it is impossible to install lining, plasterboard sheets, siding, fibreboard and chipboard, OSB and many other products. And today we will talk about such consumables as metal screws with a drill.

What it is?

Externally, these devices resemble conventional screws, but there is still a difference, and the essential - the tip of the product is a small drill. Thus, the metal screws with a drill first cut through the sheet, and then, thanks to the threads, screwed into it. A metal cap allows you to securely fix the element on the work surface. At the same time, the time and effort required for their tightening are minimal.

Appointment

Screws for metal with a drill are designed for joining and fixing sheet iron to other steel and wooden structures. In this case, the fastener can be screwed into the surface without pre-drilling, if its thickness is 2 millimeters.

Construction and materials

As we have already noted, self-cutters for metal with a drill consist of three elements:

• A small drill bit;
• Thread, the turns of which occupy most of the area of the whole product;
• Hat, which does not allow the screw to scroll further.

Often in construction, fasteners are used with a drill having a thickness of 3.5 to 4.8 millimeters. The self-tapping screw is made of high-strength carbon steel, and the top is covered with a special protective layer. The head (hat) of the product is made in the form of a hemisphere with a stamped washer. As for the thread, it is double in such screws, which allows you to better fix the product in a metal base.

Also worth noting is a type of device, such as self-tapping screws for metal with a drill and presshead. Such consumables are used for reliable fixation of metal and wood structures to sheets and profiles without preliminary drilling of the surface.

To rocker self-tapping screws for metal: price

The cost of these products is almost the same as for conventional screws that do not have Special drill-tip. As a rule, they are bought in bulk: 10 thousand units on the Russian market can be purchased for only 100-150 rubles. If you want to purchase self-tapping screws for metal, the price per kilogram will be about 144 rubles.

Conclusion

Thanks to its simple, practical and reliable design, these devices are widely used for any decoration, laying and simple design of metal frames and structures. Using these screws in the construction industry also has its advantages: you do not need to drill holes for thin sheets of steel, which in turn greatly speeds up and simplifies the work. At the same time, other types of such devices are also in great demand and are used in many branches of construction and simply in housekeeping.