Header pin socket built into PCB

[jonsmirl]

Can anyone help me identify a low cost source for these pin sockets that are mounted into the PCB? They accept standard 0.1in headers. I need to create a zero profile socket like this.

I've found one supplier but they want $0.60 a pin. We need about 50,000 so that is way too expensive.

https://picasaweb.google.com/100699090485695364248/March82012?authuser=0&feat=directlink