FIELD: mechanical engineering; machine parts. SUBSTANCE: screw has socket for engagement with manipulator tool and side wall in form of side surface of cylinder, outer circumference of cylinder differing from circle. Part of screw side wall is arranged in outer and/or inner side surface of cylinder in radial direction and the rest of screw, on conical surface. Socket is made in form of cavity or projection. Screw manipulator tool is made with configuration complementing the screw socket. EFFECT: enlarged operating capabilities. 6 cl, 6 dwg
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