http://www.jwwinco.com/products/section8/index.html#wing-nuts-and-wing-screws
has a huge variety of wing nuts and all sorts of metal and plastic
knobs: lobed, knurled, plastic, metal, blank, through-bored, etc.
I won't be back on my boat 'til November but can put a thread gauge on
the bolts in question then, if no one's had a chance to do it by then.
Phil
s/v Cynosure
Seattle / San Carlos
[...]
> <mailto:
wi...@appletonproperties.com> wrote:
>
> A metric wing-nut would work but is kind of a crummy solution. I was
> hoping someone might have located a manufacturer who made replacements
> or might know someone who has made plastic molds for new "gadgets".
>
> W
>
> William Fastow
[...]