NF ISO 2351-3
Assembly tools for screws and nuts - Machine-operated screwdriver bits - Part 3 : screwdriver bits for hexagon socket screws
ISO 2351-3 prescribes the technical specifications for machine-operated screwdriver bits for hexagon socket screws. It applies to bits with male hexagon drive or with cylindrical flat end drive as defined in ISO 1173, and to tips for screwdrivers as defined in ISO 2936.It gives also recommended combinations between tips and bits.
ISO 2351-3 prescribes the technical specifications for machine-operated screwdriver bits for hexagon socket screws. It applies to bits with male hexagon drive or with cylindrical flat end drive as defined in ISO 1173, and to tips for screwdrivers as defined in ISO 2936.
It gives also recommended combinations between tips and bits.
La présente norme fixe les dimensions des embouts six pans mâles, à hexagone conducteur mâle, repérés dans la nomenclature de la norme NF E 74-380 sous le numéro 115. Les hexagones conducteurs sont conformes à la norme NF E 74-360.
ISO 2351-3:2014 prescribes the technical specifications for machine-operated screwdriver bits for hexagon socket screws, listed in ISO 1703 under reference number 3 2 03 01 0. It applies to bits with male hexagon drive or with cylindrical flat-end drive as defined in ISO 1173 and to tips for screwdrivers as defined in ISO 2936. It also gives recommended combinations between tips and bits.
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!

- With a single click, add a new language, the Requirements or Redline+ service and add one or more additional users.
- Whether you are in the process of acquiring a standard or it is already available in your personal space, the UPSELL service is available at every stage to help you understand it and implement it within your organization.
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