Ok, so I am soldering these 10x2 headers (like Jameco [1] Part
#53479) to some perf board and I'm having some problems.  The plastic
doesn't really hold the pins in that well.  When I try and solder, the
plastic ends up melting a little, the pin comes loose and slides
around.  Some pins are loose even after cooling, and thus a good
contact is not made when the matching female connector is attached.
Is there some trick that stops the pins from sliding?  Is there a
better part to use?

Thanks,

-Dave

[1] http://www.jameco.com/

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