In U.S., I mainly see Londonberry and Rainbow Gallery linen threads. If your LNS has trouble locating, have them check about ordering for you from Nordic Needle (or you can order from Nordic Needle directly -- Londonberry at
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and Rainbow Gallery Linen at
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). Rainbow Gallery manufacturer's website is
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and incidentally has a lot of freebies. DMC linen threads are definitely not for hardanger work (and not on fabric counts 32-40); the DMC perle cottons work great with Hardanger and have just a hint of "sheen" and there are an awful lot of other brands of perles now out there.
Traditionally with hardanger (particularly if after cutting and pulling threads post-working main kloster blocks you will be wrapping, weaving, making wrapped bars, picots, dove's eyes or other stitches) you need two different weight/thickness of threads -- that's usually a #8 perle (thicker, traditional for kloster blocks on 22-36 count fabric) and a #12 perle (thinner for more intricate work within cut areas).