The values laid down herein have been specified so as to satisfy the requirements laid down in ISO 5858 or ISO 8641 (depending on the classification of the nut). States the values for nuts, a self-locking feature achieved by forming the upper portion out-of-round and with the given classification. Is intended solely for the drawing up of product standards appropriate for aerospace use.

General information

  • Status :  Withdrawn
    Publication date : 1988-12
  • Edition : 1
    Number of pages : 2
  • :
    ISO/TC 20/SC 4
    Aerospace fastener systems
  • 49.030.30

Got a question?

Check out our FAQs

Customer care
+41 22 749 08 88

Opening hours:
Monday to Friday - 09:00-12:00, 14:00-17:00 (UTC+1)

Keep up to date with ISO

Sign up to our newsletter for the latest news, views and product information.