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I encountered these security screws attempting to remove and clean my MAF sensor. I've never seen them before and I don't know how to remove them. Any ideas?Unusual one-way screw

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    Those screws are used so people don’t upset how it is fitted... A decent set of grips or pliers may work but be warned... – Solar Mike Feb 10 at 21:31
  • Alternately, cut a slot in the top with a hack saw, and use a standard screw driver. – the_storyteller Feb 11 at 22:07

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