NF L22-249
NF L22-249

NF L22-249

November 1987
Standard Current

Bolt, bihexagonal head, with locking hole, 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 L22-249

ICS Codes

49.030.20   Bolts, screws, studs
Sumary
Bolt, bihexagonal head, with locking hole, 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 L22-249
NF L22-249
October 1966
Standard Cancelled
Aircraft fasteners. 12 Point fine pitch flange screw with hole for locking wire, waisted shank, for temperatures above 260 degrees C.

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