DescriptionMaterial:Cam screw steel tempered to 10.9. Hexagon washer mild steel.Version:Cam screw black oxidised. Hexagon washer hardened and black oxidised.Note:Theses unequal hexagon fixture clamps can minimise the cost of clamping in fixtures. The clamping range can be altered up to 17 mm from the same tapped hole. Simply rotate the hexagon washer. On request:Replacement cam screws.Special features: