This column contains a list of links that you might find useful

Motorcycling Pages
My Page on British Motorcycling

Thread Data Pages
Introduction to Thread Data Pages
BA (British Association Threads)
BSC (British Standard Cycle Threads)
BSF (British Standard Fine Threads)
BSP (British Standard Pipe Threads)
BSTP (British Standard Taper Pipe Threads
BSW (British Standard Whitworth Threads
CEI (Cycle Engineers Institute Threads)
ISO (International Standards Organization) Metric Coarse Thread
ISO (International Standards Organization) Metric Fine Thread
ISO (International Standards Organization) Metric Special Pitches Thread
UNC (Unified Coarse) Thread
UNF (Unified Fine) Thread
Drill Sizes Chart