I tightened the attachment/adjustment screw (kydex for GB) a while ago to set the Kydex holster at the desired angle. Now, the rubber gasket is split and the screw and nut are inseparable - if I try to loosen the screw for re-adjustment, the nut and kydex just move along with every turn of the screw. Is there a way to unlock the screw from the nut without sawing through the screw? Can I just send it in for repair? Thanks in advance.