For aluminium or steel to aluminium connections where no mechanical tension is involved. The lower section of the body protects the bolts from corrosion and makes tightening of the bolts easy, using fork wrench ST34. The correct tightening torque is essential to the connection. The body is made of corrosion resistant aluminium alloy, and the bolts are hot-dip galvanised steel. All connectors are pre-brushed and prepared with joint compound.