Boxford missing a Nut

[Chris GeorgeParticipant @chrisgeorge68271]

So I finally jumped in and brought myself a Boxford Lathe, and currently just fixing all the issues. Managed to figure out how to take the play out the cross slides etc.

However just notices a small bolt missing. The thread is a little damaged but looks like it could be a M6x1.25. But as it’s a British machine made in 1952 I’m surprised it’s metric?

Anyone have any pearls of wisdom or knowledge they can shine on the situation.

[Chris GeorgeParticipant @chrisgeorge68271]

[Keith LongParticipant @keithlong89920]

More likely 1/4in BSW (20tpi)

[old martParticipant @oldmart]

Take the handle off to expose more thread. It could be 1/4 BSF, or 1/4 UNF even, as the lathe is a South Bend clone.

[Pete RimmerParticipant @peterimmer30576]

It's a 1/4" BSW round nut with a slight dome top and a slot across it. You need a screwdriver with a slot ground in the middle of the blade to tighten it.

[Sam SpoonsParticipant @samspoons83065]

It is indeed ¼" BSW, mine has a narrow 'locknut' style nut on it. I know as I had to source one for the top slide.

How are you going about removing backlash, I'm having trouble with mine on both cross and top slides and tailstock?

[OldironParticipant @oldiron]

Agreed it is1/4 BSW nut with a rounded head. I made one for mine from a standard nut and turned it down to the required dimensions.

regards

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