FIELD: machine building.
SUBSTANCE: invention refers to threaded fasts. The threaded fast consists of a nut with planes for a wrench; on one plane there is made a continuous split perpendicular to this plane. On diametrically located plane there is made a groove parallel to nut axis. On planes adjacent to split plane there are made grooves wherein there is inserted a tightening bracket upon compression of split parts of nut to decrease or elimination of a gap in the split.
EFFECT: easy disconnecting at corrosion of connection elements.
1 dwg
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