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Tiny split pins.

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David K13/12/2019 20:50:19
258 forum posts
259 photos

I have been making some M3 castle nuts which will require split pins when fitted.

What is the preferred method to make tiny split pins

Chris Gunn13/12/2019 20:55:47
335 forum posts
24 photos

David, I have some 1/32" pins if they are any help, PM me

Chris Gunn

JasonB13/12/2019 20:56:52
18650 forum posts
2049 photos
1 articles

Well you could by 1/32" ones (0.8mm) which is about right for a 3mm or 1/8" shaft from the usual ME suppliers

If you want to make your own then in the past I have filed 0.5mm steel wire down to half thickness and then bent to shape. A shallow Vee milled into some flat bar holds the while while you file it.

Finished job through 1/16" diameter pins

David K14/12/2019 13:13:21
258 forum posts
259 photos

Thanks , I did not realise you could buy them that small . That said I think mine will need to be

a little smaller than 1/32 so I will get some wire.

Thanks for the offer Chris

Graham Swales14/12/2019 14:53:32
32 forum posts

One trick that I have used is to cut a length of wire and hold it under tension in a piercing saw frame. You can then draw file the wire to the required section before cutting and forming.


old Al14/12/2019 14:58:02
170 forum posts

you can by smaller still if you look for them on ebay. type in split pin and all will be revealed. Done it myself a year ago. cheap as well

Chris Gunn14/12/2019 15:47:28
335 forum posts
24 photos

David, that's OK, I have several boxes I will never use, hence the offer.

Chris Gunn

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