Plastic Nut Nylon material DIN standad , fine or coarse threads ,long useful life. Plastic NutNylon material DIN standad , fine or coars threads ,and PC, PP ,ABS ,PVC, PE ect material ,feature :anti-rust & erode , heat - resisting , and are popular with insulation ,anti-rust appliances ect.also OEM ,ODE are available , with different sizes and JIS ,ANSI ,GB standards .Brand name:JC