NAS1800:2021
Current
Current
The latest, up-to-date edition.
RECESS, SIX LOBE DRIVE, INTERNAL, DIMENSIONS FOR RECESS AND GAGES
Available format(s)
Hardcopy
Language(s)
English
Published date
06-30-2021
Publisher
This design standard defines the dimensional requirements for internal six lobe drive-internal recess head fasteners in 100° shear and tension flush heads and pan heads.
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