British Standards Document
BS 4235-1
Specification for metric keys and keyways. Parallel and taper keys

https://doi.org/10.3403/00075782U

BS 4235-1 is maintained by MCE/5. The current release of this standard is:

BS 4235-1:1972 Specification for metric keys and keyways. Parallel and taper keys

https://doi.org/10.3403/00075782 (published 22/02/1972)

This standard is available from the following sources:

Other historical versions of this standard document also exist: