I used to get the spade connector type bridges and solder paper clip wire to them to use in Bally/Stern power supply boards, id twist them around the legs of the bridge with pliers then solder them... worked well and nice n strong but was a pain to do, (took a lot of time) but now i buy the wire leg bridges.

http://au.element14.com

PSPA also has the wire lead bridges    http://www.pinballspareparts.com.au/index.php?crn=1&rn=525&action=show_detail