This standard specifies the properties of round nuts with set pin holes in their side, for thread sizes M2 to M10.
Round nuts with set pin holes in their side are parts generally made of steel, stainless steel or non-ferrous metals, which are designed to be used for various purposes, as for instance in electrical engineering. They can be tightened by means of a type B hook wrench as specified in DIN 1810 and are intended to be used for locking components where no specific prestressing forces or a specific resistance to sripping are required.