NBN EN 14218 : 2003

Foreword
1 Scope
2 Normative references
3 Dimensions
4 Specifications and reference European or International
  Standards
5 Designation
Annex A (normative) Gauging of hexagon flange nuts

Includes characteristics of hexagon nuts with flange, with metric fine pitch thread, with nominal thread diameters from 8 mm up to and including 20 mm, in product grade A for d <= 16 mm and product grade B for d > 16 mm and with property classes 8, 10, 12 and A2-70.