This pack supplies four Type-A cross-arm servo horns intended for standard Futaba-style spline interfaces, provided without screws or retail packing. The description in the title specifies the D6mm cross-arm dimension and the items are sold as a 4-piece set.
These horns are suited to repair tasks and routine maintenance where worn or damaged horn arms need swapping. Because the set excludes screws, plan to use existing mounting hardware or source suitable retaining screws prior to fitting. Always confirm that your servo uses the D6mm cross-arm style before attempting to fit.
Fitting is performed by aligning the horn to the servo spline and securing it with the correct screw for your servo model. Note that swapping horns or changing lever arm length will alter leverage and control throw, so inspect control movement after any change.
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