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TOP-LOCK^® locking washers installation instructions

◆Not to be used on movable substrate surface.

◆Not to be used on too soft substrate surface.

◆Not to be used in presence of very high settlement surface of the substrate.

◆Not to be used in case of underlying surfaces which have a higher hardness than the TOP-LOCK^® washers.

◆Not to be used under  self -locking screw and thread self-locking conditions.

◆Not to be used  with “left turning” threads screw working conditions.