FIELD: machine engineering.
SUBSTANCE: metal fastener contains an expanded head and a smooth barrel for engaging with the structure and located along the axis of rotation. The surface of the smooth barrel comprises, around the noted smooth barrel, at least one alternating conductive portion and at least one alternating lubricating portion. At least one conductive portion extends along the length of the smooth barrel, and at least one noted lubricating portion extends along the entire length of the smooth barrel, a lubricant is applied to the noted lubricating portion.
EFFECT: increased possibility of conducting electricity in all layers of the structure.
11 cl, 7 dwg
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