Thread on a Myford ML7?

If you can screw in something soft (e.g. suitably sized wooden dowel) you could use a thread gauge on the item (after unscrewing) to get the pitch.

This should provide a "clue".

You can also measure the thread's core diameter by trial and error.

These 2 pieces of info may be enough to ID (or reduce the possibilities) the thread.

BugBear

Peter, I've just checked on my ML7 (K130898) Thought it was similar vintage but from number perhaps somewhat later. It is 3/8 BSF, with coating of paint and/or accumulated dirt!

Henry

I see that Henry has provided an answer. Out of curiosity, since I don't recognise such a lug on either my or my late Father's ML7s (1951 and 1965 vintages respectively), Is this the lug for mounting a chuck guard?

regards Mark Rand RTFM

"Mark Rand" wrote

That's an interesting question, Mark I've just dug out the handbook that came with the lathe. There's no indication anywhere among its text, and umpteen drawings, of the lug. However on the front cover of the handbook is a faded sticker labelled "Health & Safety at Work etc Act 1974" Can't read most of it but it seems to point out that Myford and employers are required to do their best to cut risks when the machine "is properly used"

Henry

The lug is used to mount the Myford lever operated collet chuck (amongst other things probably).

Regards, Tony