In article , Don Foreman says...

3/4" of thread will contribute about zilch to the strength beyond the
1.25" thread length of the coupler nut with 11 pitch thread.

Don that makes too much sense.

Some folks just *have* to make prints with one inch diameter
holes in 3/4 inch stock. They cannot be dissuaded ever.

Best thing to do is hand them a handfull of chips, say "here's
your job." And no, I'm not giving the money back.

Jim


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