Hi All, What I should have asked you last night is how do you remove a partly stripped screw from the rotor arm which is stuck in place at the moment and I do apologize for not giving you the right information as I was tired & not thinking straight. I only asked about the replacement screw as my local mechanic asked me to get another one if possible! and I would prefer to do this job myself. But the mechanic had in mined to cut the plastic part of the rotor arm off making it easier to get at the screw. could you help me again?!** Yours Peter0003