What kind of terminals does your amp use? (set-screw or the type where there's a machined screw that presses down a small plate for ring/spade terminals...?)
Take one of yours out and take it to Lowes. In the hardware section they have a thing hanging you can thread it into to find out was size/thread it is..
if its alpine they are metric and i believe they are m4 can't remember exactly.. 1st or 2nd screw from smallest.. they didn't have screw types for me.. i had to buy flat headed machine screws..
What kind of terminals does your amp use? (set-screw or the type where there's a machined screw that presses down a small plate for ring/spade terminals...?)