as far as i know, sapim are one of the brands where longer nipples don't have longer threads, though on another thread recently someone claimed that some new sapim nipples are different.
(it's a trade off - sapim's approach is less accommodating of having the wrong spoke length, but is arguably stronger because you can get the spoke all the way to the slot even on rims where you need long nipples to be able to turn them.)
as far as i know, sapim are one of the brands where longer nipples don't have longer threads, though on another thread recently someone claimed that some new sapim nipples are different.
(it's a trade off - sapim's approach is less accommodating of having the wrong spoke length, but is arguably stronger because you can get the spoke all the way to the slot even on rims where you need long nipples to be able to turn them.)