Foot mounting HBN-12/16X2 For cylinders ESNU, DSNU, ESN, DSN, EGZ and sensors. Size=12/16, Corrosion resistance classification CRC=1 - Low corrosion stress, Product weight=107 g, Materials note=(* Free of copper and PTFE, * Conforms to RoHS), Material mounting=(* Steel, * Galvanised)