If anyone has this amp, what screws do they take. I traded an amp for this one but it only came with 2 screws and I thought I would get more screws with it but I lost both of the screws. So if anyone has this amp could you tell me what screws I need to get. and I think it came with washers but I don't know if you need it. If you tell me what sizes they are that would be great. Thanks