1 This European Standard estaOlishes limits for various types of surface discontinuities on nuts with
- nominal thread diameters from 5 up to and including 39 mm
- product grade A and B
- all property classes according to EN 20 898-2, ISO 898-6 and ISO 2320 unless otherwise specified in product standards or by the purchaser.
2 In case of the permissible limits for surface discontinuities indicated in clause 3, properties according to EN 20 898-2, ISO 898-6 and ISO 2320 as appropriate must be satisfied. In addition, the dimen-sional requirements of the appropriate product standard must be satisfied.
Notes:
- The figures in clause 3 are examples only. They also apply correspondingly to other types of nuts.
- The individual figures show the surface discontinuities exaggerated in some cases for clarity.