Metric or US thread studs for my bridge?

[felipe82]

Hi,
I have an Ibanez AX1220 with a stock Gibraltar gtb100 bridge that I want to replace. I want to buy this one

http://wdmusicproducts.com/Merchant2...gory_Code=TPWA

but I'm not sure what kind of studs I need to order. ¿metric or US? (I assume that an Ibanez is an import guitar as it says on the link, but I just want to make sure)

thanks a lot