Round Knurled Nut

Knurled nuts are manufactured to the German standard DIN 6303 and have no equivalents. They come in two types: with additional holes for pins (the number of holes depends on the nut size and material) and without holes. Steel nuts have a tensile property class of 5.

The fastener is made from plastic, non-ferrous metals and alloys (brass and aluminium), blackened steel, coated steel (black oxide finish, electroplated zinc coating), A2 stainless steel (type 12×18N9T), and acid-resistant corrosion-resistant austenitic A4 stainless steel (type 10×17N13M2).

The nut’s shape makes it easy to tighten and loosen even without special tools. Thread diameter: M5-M12. Height: 7-16 mm. Outer diameter: 20-40 mm.

The fastener is used in furniture manufacturing, instrument-making, machine-building and other production and industrial sectors. Stainless steel nuts are the most common — they are used for parts under increased loads and in aggressive environments (high humidity or acidity).