NF L22-248

NF L22-248

November 1987
Standard Current

Bolt, bihexagonal head, necked shank. ISO thread : 4G class, fine pitch.

La présente norme définit la forme, les dimensions, les matériaux et les traitements de surface de vis à tête bihexagonale utilisées dans l'industrie aéronautique. Elle précise en outre les spécifications techniques à appliquer à ces vis et leur désignation normalisée.

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Main informations

Collections

National standards and national normative documents

Publication date

November 1987

Number of pages

4 p.

Reference

NF L22-248

ICS Codes

49.030.20   Bolts, screws, studs

Classification index

L22-248

Print number

1 - 01/12/1987
Sumary
Bolt, bihexagonal head, necked shank. ISO thread : 4G class, fine pitch.

La présente norme définit la forme, les dimensions, les matériaux et les traitements de surface de vis à tête bihexagonale utilisées dans l'industrie aéronautique. Elle précise en outre les spécifications techniques à appliquer à ces vis et leur désignation normalisée.
Replaced standards (1)
NF L22-248
October 1966
Standard Cancelled
Aircraft fasteners. 12 Point fine pitch flange screws with waisted shank for temperatures above 260 degrees C.

Table of contents
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  • 1 Objet et domaine d'application
    2
  • 2 Références
    2
  • 3 Dimensions
    3
  • 4 Matériaux - Traitements de surface
    4
  • 5 Spécifications techniques
    4
  • 6 Désignation
    4
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