This European Standard specifies the characteristics of prevailing torque type all metal hexagon nuts with flange and metric fine pitch thread with nominal thread diameters from 8 up to and including 20 mm, in product grade A for sizes d up to and including 16 mm and product grade B for sizes d > 16 mm and propertyclasses 6, 8 and 10.
PUBLISHED
EN 1667:1997
90.93
Standard confirmed
Apr 13, 2023