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.
DIN 962 Bolts, screws, studs and nuts - Designations, types and finishes*, 2013-04-01 Update
DIN EN 10087 Free-cutting steels - Technical delivery conditions for semi-finished products, hot-rolled bars and rods; German version EN 10087:1998
DIN EN 10277-3 Bright steel products - Technical delivery conditions - Part 3: Free-cutting steels; English version of DIN EN 10277-3:2008-06*, 2008-06-01 Update
DIN 548:2007 history
2023DIN 548:2023-11 Round nuts with set pin holes in side / Note: Date of issue 2023-10-06*Intended as replacement for DIN 548 (2007-01).