British Standards Document
BS EN ISO 898-1
Mechanical properties of fasteners made of carbon steel and alloy steel. Bolts, screws and studs with specified property classes. Coarse thread and fine pitch thread

https://doi.org/10.3403/30254314U

BS EN ISO 898-1 is maintained by FME/9. The current release of this standard is:

BS EN ISO 898-1:2013 Mechanical properties of fasteners made of carbon steel and alloy steel. Bolts, screws and studs with specified property classes. Coarse thread and fine pitch thread

https://doi.org/10.3403/30254314 (published 31/01/2013)

This standard is available from the following sources:

Other historical versions of this standard document also exist:

BS EN ISO 898-1:2009 [current until 31/01/2013]
BS EN ISO 898-1:1999 [current until 30/04/2009]