With the new European Machine Safety Normative (2006/42/EC) in mind Satech has developed unlosable elements for its fasteners of the GREEN FAST system (Patented EU). We created a special bolt and nut which holds the panel to the base/foot that has now become unlosable, by simply placing the nut on the bolt & tightening or un tightening it makes it unlosable . whether it’s at the assembly or dismantle stage it’s just a question of tightening or loosening the screw & it will however remain unlosable. Similarly, there is a spring clip the holds the panels together at the top which has also become unlosable thanks to a barb that has been created, when pressed in place this Barb gets caught rendering it unlosable as well.