Wingscrews are designed to allow easy adjustment of your hydrofoil mast position while out in the water without the use of any tools.  This can be very useful when setting up new gear or after making changes to your foil setup.  Please do not use any tools to tighten your wingscrews or they could be damaged.  Our wingscrews are wider than most typical hardware store wingscrews or wingnuts so allow an average person enough leverage to tighten them properly.