Hi Gratch Yep search tool is great
90's vintage Disco, older series, P38 and 90's vintage range rover, No defender of the1986 vintage.
I know P38's are metric 10mm x 1.0 pitch but are the 1980's defenders 3/16 unf or did they changee to Metric?
My 110 of 1989 vintage has a mixture of metric and UNF fittings. They only cost pennies so get yourself a nice selection. Having said that my local motor factor doesn't sell imperial fittings the useless tw&t