Odd screws & bolts

[walter@roadster.sps.mot.com (thomas walter x5955)]

Looking for some ODD BALL screw's and plug, any and all pointers
are appreciated. ;-)

5mm x 0.75mm thread.   ISO standard is 5mm x 0.80mm thread. These screws
                                           were used by Hitachi for a total of 
6 months production
                                           when they went from SAE fine thread 
to Metric (1967)
                                           (appearantly the 0.75mm was the 
FRENCH standard)

PLUG 3/8 x 19 tpi      Another odd ball, this one from the days of
                                           Austin Motor Company, they kept the 
British size
                                           on the oil filler hole. (USA had 
either 14 tpi or
                                           18 tpi).

Sigh, both odd ball threads are out of my lathe's range... hmm, good
  excuse for new back gears?

Thanks,

Tom Walter   '67 Datsun 2000 - What, NO whitworth? 
Austin, TX.