Fasteners, despite their small size, perform a very important task – connecting various structural elements, equipment and appliances.They are used in everyday life and industry, in maintenance and construction work.A wide variety of fasteners are available on the market.But in order not to make the wrong choice, you need to know the varieties of these products and their main features.
There are many ways to classify fasteners.One of them uses the existence of threads.With its help, you can create detachable connections, which are very popular in everyday life and industrial sites.Popular threaded fasteners include:Each element has a special purpose.For example, in Bulat-Metal you can see mounts for different tasks.Hex bolts are ideal for joining metal structures and equipment components, as well as self-tapping screws – for repair work involving wooden elements.The operating range of the stent determines its shape, size, material and other parameters.The screws on wood and metal are visually different – the former has a thinner thread and a deviation from the cap.
In the construction industry, structural bolts and nuts are widely used in the production of sheds, bridges, dams and power plants.In fact, the use of structural bolts and nuts is done alternately by welding metals, which means either structural bolts or arc welding using electrodes, depending on the need to join the steel plate and beam.Each connection method has its own advantages and disadvantages.
Structural screws used in building beam connections are made of high-grade steel, typically grade 10.9.Grade 10.9 means that the tensile strength density of the structural screw is about 1040 N/mm2, and it can withstand up to 90% of the total stress applied to the screw body in the elastic region without permanent deformation.Compared with 4.8 iron, 5.6 iron, 8.8 dry steel, structural screws have higher tensile strength and have more complicated heat treatment in production.
Post time: Aug-20-2022