Thread type used on Supermatics?
Posted by Jeffo on Friday, 07-Dec-2007
Hi Dave L. or anyone who knows,
What type of threads are used on the Supermatic's hardware? Is it
Wentworth, some metric odd thread or what?
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- Re: Thread type used on Supermatics?
- Posted by Dave L on Saturday, 08-Dec-2007
The Supermatic crankshaft is 5/16-18, the spoon mount (and H-link mount on the II and maybe the 500) is 6-32. I'm not sure about the Supermatic A/B/C H-link mount, 4-40 seems a bit loose. I'm also not sure about the gripper plate, is there a US thread that's really really close to a M3 (metric)?
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The Top-O-Matic (at least the old one) uses M3 for everything but the crankshaft.