The Futaba FUJ55171 pack comprises ten 2.6x6mm screws intended for mounting servo horns on Futaba S3115 and S3116 servos. Supplied without retail packaging, these screws are designed to replace worn or lost fasteners at horn and linkage mounting points on model servos.
Fitting advice: align the horn over the servo spline, start each screw by hand into the pilot hole to avoid cross-threading, and tighten until secure. Take care with plastic horns to avoid stripping threads; metal horns can be torqued more firmly where needed. These screws perform the simple but essential role of keeping servo horn connections stable under load.
It is sensible to carry a spare set during events or workshop sessions since the small hardware can be misplaced, and a cheap replacement pack prevents unnecessary downtime.
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