Black flat M6 wingnut set for WizardHat

Hydrofoil wingnut set...designed for easy adjustment in the water without the use of any tools.  One set of 4 wingnuts for use with WizardHat universal foil mounting hardware.  Use in place of their M6 hex nuts for mast plates without countersunk screw holes.  Machined 6061 aluminum, black anodized.  Stainless steel helicoil inserts for more durability and strength. 
 
Do not use any tools and do not overtighten...finger tight only.  Do not expect the wingnuts to align with your mast. Please see our FAQ for more information.