FIELD: machine building.
SUBSTANCE: invention relates the fastener for locking in the drilled hole. The fastener contains a rod section and counterforce, wherein on the rod section the brace body with counterforces is located. The counterforce has several arc-like lobes, wherein each lobe is created by two ribs connected by a clamp. The ribs of the brace lobes together set side surface (M) of counterforces, this side surface is a body of rotation symmetrical relatively to the longitudinal axis of the fastener. At that the clamp has arc-like convexity, that in radial direction project beyond the side surface (M).
EFFECT: invention ensures the fastener use both in wide and narrow drilled hole.
8 cl, 2 dwg
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