Mechanically galvanised spring steel (≤ ∅ 3.5 galvanised, blue passivated)
The Belleville washer form features angled teeth to create an optimum and simultaneous friction-fit and form-fit connection.
NoticeIt makes sense in many cases – primarily when using short screws and loads which are vertical to the screw axis – to prevent the connection loosening by using lock washers to supplement the pre-tensioning force.
