This part of ISO 3506 specifies the mechanical properties of nuts made of austenitic, martensitic and ferritic steel grades of corrosion-resistant stainless steels, when tested over an ambient temperature range of 10 °C to 35 °C. Properties vary at higher or lower temperatures.
This part of ISO 3506 applies to nuts:
⎯ with nominal thread diameter D u 39 mm;
⎯ of triangular ISO metric threads with diameters and pitches in accordance with ISO 68-1, ISO 261 and ISO 262;
⎯ of any shape;
⎯ with width across flats as specified in ISO 272;
⎯ with nominal heights m W 0,5D.
