23-05-2024, 08:06 AM
There are probably numbers of us whose stores and workshop shelves are packed with jam and mayonnaise jars full of fastenings. Whitworth allegedly the usual older threads, but Zenith and Solex capable of metric use. Then we come to BSF and BA. Any older Ford engines, even thuogh built in Cork or Dagenham, bring UNF and some UNC. Previous owners upon whose heads curses maybe pronounced, may have used metric. As discussed above, the TPI is not restricted to any thread profile. Workshops shared with senior bicycles quadruple the number of threads, some builders such as Raleigh and early Sunbeam had threads of their own. Oh the hours of fun raking about for fastenings! Some specialists have been researching the great big threads used in cider presses in the Marches. Well done them, we look forward to their books in due course.