[quote=
Very true. However, 1/4-28 is very common thread size for British nipples as well. First thing to do is determine what you have, you might get lucky and it will be a common thread size. [/quote]

does anyone know of a source to the 1/4-28 nipples? Peter Dyson had them listed and they responded to my questions until I ordered and paid for them- last July- since then - no product, no response to email or snail mail