square headed bolt

[Capstan SpeakingParticipant @capstanspeaking95294]

Stop it ! Stop the madness!

O.P. I'll make you one. pleeeeeeeeease

[Steven VineParticipant @stevenvine79904]

Turn it out of a round. Then heat the thick end to cherry red, and beat it into a nice square on the anvil. Let's not make things too hard here.

[AjohnwParticipant @ajohnw51620]

The Boxford steady is likely to be extremely similar. They use socket head screws rather than the square head bolts. They also use these for clamping the fingers. The OP could switch to the same thing but as they will be unbrako quality it wouldn't be a cheap option.

I'd guess that the originals are a tool steel rather than mild so it would be best to make one out of key steel really. That can be obtained in square or hex. Or flat ground cast sections.

Yep – perfect job for a capstan if the right bits and pieces are available.

John

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[paul 1950Participant @paul1950]

buy some threaded bar and make a square nut

[mick70Participant @mick70]

Sorry haven't replied away with work and internet hit and miss.

Will measure bolt size Sat when I get back.

[paul 1950Participant @paul1950]

just had a look at my lathe the southbend bolt is 3" long 5/16 UNC thread with a squar head the boxford has a cap head

[Brian WoodParticipant @brianwood45127]

Last spanner in the works; the thread on this wretched bolt is quite probably UNC since the lathe is American.

There is no guarantee that a Boxford version will be a direct exchange

Naughty Boy had just such trouble in trying to fit Boxford chucks to the lathe, something I recall from earlier posts of his.

EDIT  And now I see Paul's note above which confirms it

Brian

Edited By Brian Wood on 25/06/2015 13:04:05

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