Originally Posted by
Drew Eckhardt
Japanese (JIS standard) nipples are 3.5mm (red Park wrench).
That said, there's no reason not to reuse brass nipples. Aluminum nipples are also reusable when you have the foresight to properly lubricate the threads and rim sockets with anti-seize or grease.
Thanks Drew. Yeah I have no problem reusing. However, sometimes they get crapped up from wrench slippage or when a spoke breaks off inside. Now where do buy some Japanese JIS nipples

- Dang I used to visit Japan on business at least once a year when I worked for a Japanese company (1984-2006)!!