Self-Aligning Rod Coupler Crfk-M16X1, 5 Size=M16X1, 5, Corrosion Resistance Classification Crc=4 - Very High Corrosion Stress, Ambient Temperature=-20 - 100┬░C, Product Weight=670 G, Materials Note= (* Free of Copper and Ptfe, * Conforms to Rohs) , Festo