This buy it now listing is for an IMPERIAL threaded and sized Brake Clevis Pin and Yoke assembly, as fitted to many classic British commercials, from the 1960's throught to the 1990's.
The thread is 5/8"UNF (or in other words a 15/16" AF Spanner size will be needed to undo the locknut which keeps the Yoke tight in position) and the pin size is 1/2"
This part is a direct replacement for those originally fitted to old British vehicles of that era
These imperial sized Clevis Pins and Yokes are getting increasingly hard to find now.
Most modern vehicles are fitted with a similiar part but have M16 (metric) thread and 14mm sized pin.
Almost all British vehicles of the late 1960's 1970's and 1980's into the 1990's were fitted with these clevis pins and yokes.
Please check before buying if this part is the right part for your vehicle (thread size and pin size) If in doubt please contact me and I will try to help
Last picture shows the Yoke assembly as fitted to a standard Bendix or Clayton Dewandre Spring Brake Chamber which was fitted to almost all ERf's of the period. These assemblies were also fitted to ordinary front brake chambers too in their thousands (picture for illustrative purposes only)