I just got a used Ibanez SA, and it has a tremolo bridge, but no actual bar. I know I can buy a tremolo arm easily off of Warmoth or something, but do I have to worry about specifications? Would I need to worry about thread count or anything?
I think you'd just need to worry about the diameter of the hole. Anyway I think this is the one you need http://cgi.ebay.com/GRG-GRX-GSA-RG-SA-IBANEZ-TREMOLO-TREM-TREMELO-BAR-ARM_W0QQitemZ360174210020QQcmdZViewItemQQptZGuitar_Accessories?hash=item53dc0e4be4&_trksid=p3286.c0.m14