Bolt Sizes - Imperial and Metric

oldyellr said:

Pug, you're probably not very old, under 60, so you may not remember the Whitworth and BA stuff. I'm speaking about what I remember from over there from the 1950s when I lived there.

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You are right I am well under 60 :thumbsup: but I used to have an old witworth set.
Still get mowers from 30s coming for service.
You will remember then that if a brit has bought something with an engine on then its meant to last 100 years :laughing:
Old landrovers, British leyland and old jags etc are still about and nothing else will fit it.

A couple years ago I picked up my second Triumph motorcycle - a 60's Trophy 250 (my first is a newer Bonneville). When I started tinkering on it I was a little stumped by fastener sizes that none of my metric or SAE tools would fit. A coworker has an old Jaguar and filled me in on the Whitworth sizes and I found a decent old set on eBay.