Tiller arm - 4 mm. A robust tiller arm made from stainless steel and suitable for use with 4 mm rudder stocks.
This design replaces the previous carbon fibre, stainless steel and plastic versions that covered the size range. Use an Allen key to lock the socket head screw securely. A small flat filed onto the head of the shaft in the appropriate place will help ensure the same position of the arm on the stock can be achieved each time.