The whitworth threads are very uncommon these days. A unc thread often approximates whitworth for samller threads and there are equivalent metric threads as well. Whitworth differs from every other thread in that is has a 55 degree thread angle instead of a 60 degree and has a rounded thread peak to accommodate some dirt contamination in the threads.
Regards John regards John Ashford 07 3822 4264 0409679867 -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of John Giddy Sent: Wednesday, 22 February 2006 10:34 PM To: Discussion of issues relating to Soaring in Australia. Subject: Re: [Aus-soaring] metric guess Wouldn't be Whitworth. May be BSF. It's too fine a pitch to be Whitworth IMHO John G. stuart smith wrote: > I believe that whether its a 2" or 50mm ball, the thread on the bottom > to attach it to the tongue is still 7/8" Whitworth. > > Stuart _______________________________________________ Aus-soaring mailing list Aus-soaring@lists.internode.on.net To check or change subscription details, visit: http://lists.internode.on.net/mailman/listinfo/aus-soaring -- No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.1.375 / Virus Database: 268.0.0/266 - Release Date: 21/02/2006 _______________________________________________ Aus-soaring mailing list Aus-soaring@lists.internode.on.net To check or change subscription details, visit: http://lists.internode.on.net/mailman/listinfo/aus-soaring
