I went to transfer over the stem from my leader to my steamroller. i put the stem on and tightend down the stemcap screw, thats as far as i got before i realized my bars wont fit because the clamp size is different on this stem. So i tryed unscrewing the stem cap bolt and it just keeps spinning i think i might have stripped but it but i didnt even put it tight, how would i go about removing it?