I was going to message you with the sizes, but figured if it's in the open forum it might help somebody else with the same questions.
The Dolmar and Makita (Dolkita) 9000/9010, the 64xx/73xx/79xx, ps-420/421, EA4300, 6100, 5600, 510/5105, all have a M8x1 (same as Stihl 026) threads on the flywheel side and the same threads on the PTO side as a Stihl 026.
The Solo 665, 675, 681 and 694 would be the same as the above Dolkita saws.
The Dolmar 109, 110, 111, 115, and Makita 430, 520 and 540 have the 8Mx1 threads on the flywheel side and really corse threads on the PTO side. Nothing I have matches it. Pictures below.
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