DescriptionMaterial:Steel parts grade 5.8. Ball knob black thermoset PF 31Version:Black oxidised.Note:Flat tension levers can be used for simple clamping or control operations. Where applicable, there must be enough space available so that the grip can be rotated 360°. The version with star socket is designed to allow a 45° change of position.On request:Other internal threads, reamed holes and star sockets. Dimension “A” available in other lengths at extra charge.Special features: