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Make a screwhead?

rogart63

By rogart63
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measuretwice WRT Addict

measuretwice

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I've done so with a very fine slitting saw in a mill with some success, but the screw was large compared to watch sized (more like pocket watch/travel clock).  I' have some the of the files for the screw slot as in the link below.  I think I tried it once with the file and concluded it is bloody difficult and the file seemed too big.  It needs a very steady hand and I think a largish pocket watch sized screw to work, at least that was my limited experience with it. 

https://www.eternaltools.com/screw-head-slotting-file

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rogart63 Distinguished Member

rogart63

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7 minutes ago, TimFitz said:

It sounds like your trying to clean up screw threads is that correct? Or the slot for installing the screw?:)

 

We tried to make a new screw for a setting lever spring where the old one had a bad  thread . So made a new thread but couldn't find a low enough screwhead to clear the dial. i tried to make the head a little lower by putting it in a pin vice. That worked but the slot for the screwdriver was also removed. So was only wondering how we could make a new one. Just for fun to know and maybe have some use for some other day :) 

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TimFitz WRT Addict

TimFitz

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4 hours ago, rogart63 said:

We tried to make a new screw for a setting lever spring where the old one had a bad  thread . So made a new thread but couldn't find a low enough screwhead to clear the dial. i tried to make the head a little lower by putting it in a pin vice. That worked but the slot for the screwdriver was also removed. So was only wondering how we could make a new one. Just for fun to know and maybe have some use for some other day :) 

Thanks for clearing that up. So as " rodabod " said , a slotting file.

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rogart63 Distinguished Member

rogart63

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6 hours ago, StuartBaker104 said:

Here are a couple of options

https://www.hswalsh.com/product/slotting-screw-head-file-cut-4-hf71

https://www.esslinger.com/screwhead-file-with-tang-makes-slot-in-top-of-screws-swiss-vallorbe/

Ideally you would put the screw in a lathe and use a double roller file rest to keep the file in the right place

 

Seen that done somewhere on the internet. But think i can arrange something on my lathe. have an old unimat . So can probably make some kind of support for the file to rest upon . 

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