... 2) high quality with competitive prices nylon insert lock nut , ASME NE NTE , din 985 , din 9821) ... Description:nylon insert lock nut , ASME NE NTE , din 985 , din 982- ... Physical performance:a) class 2, made from low carbon steel, C1008, C1010, Q195 etcb) class 5, class ... , etc, And with hardened treatment.c) stainless steel SS304 SS316.-3)Surface treatment:plain/self colour, zinc ...