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Експертний відеоблог
DIN 557 is a square nut, a fastener used for fixing in profiles or structural elements that allows it to be clamped so that the corresponding element with a metric thread can be screwed in without holding the nut with a wrench.
DIN 557 square nuts are made of steel of strength class 5.
DIN 557 nuts are most often made of stainless steel and belong to the stainless steel fastener group.
DIN 557 is made of the following materials:
These nuts are most widely used in industry. The main consumer of this fastener is agricultural machinery. Due to its properties and design features, the DIN 557 nut is excellent for assembling tractor assemblies, seeders and other attachments.