Screw wood-grouse of DIN 571Hardware is a reduction of the phrase "hardware products". The range of metal products is very wide and differs to destination on industrial and multipurpose. A hardware of broad appointment is such products as knives, scissors, saws and other objects which we use every day. Industrial are self-tapping screws, nails, bolts, nuts and many other fasteners (construction). In ancient times there were handymen who could build the house without uniform nailing, but in the modern world any construction does not do without fixing production.
Now, the fixture is applied practically everywhere to connection of various details: production of furniture, construction, medicine, mechanical engineering and so on.
The construction fixture in turn shares metric both products the having various appearance and a configuration.
Metric products are hairpins, a nut, screws, i.e. production having a step of a carving of a certain size.
The products having various configuration are self-tapping screws, an anchor, the expansion bolt shield.