Hi There, I just bought a beat up ranger jaybird bass r-jb2 and it was missing the screw and washer from one of the machine heads. I just wondering if anyone could help me by telling me what machine head would be a replacement for the one missing the screw and nut. Pictures below. Thanks. Here's a better look at the same model from the net(which is also missing a nuts and washer): Do they look like Standard Fender Bass Machine heads .this is the first bass I've ever bought.