I'm seeing these listed on Ebay as being 4.7 mm (0.185039 inches) Is this the correct type used on most Triumphs. I'm not sure Triumph used metric back in the day. Sujit -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://autox.team.net/pipermail/triumphs/attachments/20170120/970d57fe/attachment.html>