I need hi-hat help...my hi-hat screw, u know the one used to hold the top hi-hat to the bar so that u can open and close the hi-hat, is f****d!! I think the threading of the screw is gone...so now, it cannot "lock" itself on the bar...so my hi-hat is always close...Is there anything i can do to solve this problem, or should i buy a new hi-hat attachment screw, if they actually do sell them seperately?