90.20 Standard under periodical review Jul 15, 2024
ISO
ISO/TC 20/SC 4 Aerospace fastener systems
International Standard
49.030.20 Bolts, screws, studs
Published
ISO 14277 specifies the dimensions of metric ribbed drivers which are inserted into internal offset cruciform ribbed or unribbed drives used in metric screws in the nominal thread diameter range of 1,6 mm to 20 mm.
PUBLISHED
ISO 14277:2002
90.20
Standard under periodical review
Jul 15, 2024