Armstrong M6x25mm wingscrew set
New slimmer lower profile design. Picture does not match actual product.
Hydrofoil wingscrew set...designed for easy adjustment in the water without the use of any tools. One set of 4 wingscrews, equivalent to 25mm length M6 button head screws. Machined 6061 aluminum and stainless steel screws. The bottom of the wingnut is contoured to mate up to the Armstrong titanium washers. Designed to fit Armstrong only.
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.