Repost with added info at bottom.
Probably 25 years ago when Priority One Electronics was around, they has these long strips of interconnected tacks which you could press into the hole and then break off and solder top and bottom. I took a quick look at my stash of stuff and didn't find any.
This comes pretty close:
http://www.verodirect.com/images/PDF/Type%2010,%2011,%203,2%20and%204%20Solder%20Pins.pdf --- On Mon, 5/11/09, Brian <blue_eagle74@...> wrote:
From: Brian <blue_eagle74@...>
Subject: [Homebrew_PCBs] Re: via's using homemade boards.
To: Homebrew_PCBs@yahoogroups.com
Date: Monday, May 11, 2009, 7:27 PM
Now that looks like the best I have heard. I'm going to use that method. Can I say it now...'why didnt I think about that'.
--- In Homebrew_PCBs@ yahoogroups. com, "derekhawkins" <eldata@...> wrote:
>
> > What have you used that works, besides through hole plating?
>
> Pressed fit header pins work best, especially for hidden vias. For the latter, you need to use flux on the tip of the pins after they are pressed flush with the board beneath where the component will go.
>
> Cut the pin at the other side, it's the chamfered geometry of the uncut tip of the pin that allows a good joint with so little exposed solder. Also, because these pins are square and the hole is round, solder will wick below the board's surface which tends to reinforce the joint.
>
> http://www.pbase com/eldata/ image/65408722
> http://www.pbase com/eldata/ image/65448015
>
> --- In Homebrew_PCBs@ yahoogroups. com, "Brian" <blue_eagle74@ > wrote:
> >
>
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