Homebrew PCBs

Figured if anyone might know it might be you guys.

 

I am making some double sided boards that will not be plate through - so I
need these metal IC socket pins you install in a strip and then cut after
soldering on both sides.  I have a roll of about 500 but will need many
more.. I just can't find more because I don't know what their proper name
is.  I've tried 'IC socket strip' but I get the strips with the plastic
tops.

 

https://drive.google.com/file/d/0B4pq0-BHd2x6czNwVFlLYWRNSUE/view?usp=sharin
g

 

Many thanks if anyone knows what the proper name is and/or where to get
them.

 

Brad