Abstract: The invention provides a floating windmill, comprising a floating element and a wind turbine. The floating windmill is distinguished in that it further comprises: a tension leg, an anchoring, a buoyancy element, a swivel and a cross bar, wherein the swivel is arranged in the buoyancy element. In operation, the floating windmill in operation is configured with the wind turbine in an upper end of the floating element extending up above the sea level, with a lower end or part of the floating element submerged in the sea, with the cross bar in one end connected to the lower part or end of the floating element and in the opposite end connected to the buoyancy element, with the buoyancy element fully submerged, preferably at safe draught depth below surface for service vessels and/or marine transport ships, with the tension leg arranged between the buoyancy element and the anchoring on the seabed.

Abstract: A fastening assembly has a bolt and a locking nut assembly. The locking nut assembly has a first nut and a second nut. The bolt has a first threaded section having a first diameter. The bolt has a second threaded section having a second diameter. The second diameter is smaller than the first diameter. The first nut matches with the first threaded section and the second nut matches with the second threaded section. The first threaded section has a first orientation. The second threaded section has a second orientation opposite to second orientation. A locking member prevents a relative rotation between said nuts. The locking nut assembly further has a fixing member for fixing the position of the locking member with regards to the nuts. The locking member has a housing with a hole having ends that are configured for receiving said nuts in a tight manner.