NF EN ISO 3506-2
Mechanical properties of corrosion-resistant stainless-steel fasteners. Part 2 : nuts.
Le présent document fait partie d'un ensemble de trois normes définissant les caractéristiques mécaniques des éléments de fixation en acier inoxydable austénitique, ferritique et martensitique : - NF ISO/DIS 3506-1 (indice de classement : E 25-100-6) pour les vis et goujons ; - NF ISO/DIS 3506-3 (indice de classement : E 25-100-8) pour les vis sans tête et éléments similaires.
ISO 3506-2:2009 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. ISO 3506-2:2009 applies to nuts: - with nominal thread diameter d ≤ 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 ≥ 0,5 d. It does not apply to nuts requiring properties, such as locking abilities and weldability.
The Requirements department helps you quickly locate within the normative text:
- mandatory clauses to satisfy,
- non-essential but useful clauses to know, such as permissions and recommendations.
The identification of these types of clauses is based on the document “ISO / IEC Directives, Part 2 - Principles and rules of structure and drafting of ISO documents ”as well as on a constantly enriched list of verbal forms.
With Requirements, quickly access the main part of the normative text!

COBAZ is the simple and effective solution to meet the normative needs related to your activity, in France and abroad.
Available by subscription, CObaz is THE modular solution to compose according to your needs today and tomorrow. Quickly discover CObaz!
Request your free, no-obligation live demo
I discover COBAZ