DIN 985 nylon insert lock nut 1. material: SS 2. thread sizes: M3-M24 ... 3. height: 4MM~48MM 4. finish: polishing DIN 985 nylon insert lock nut1. material: SS2. thread sizes: M3-M243. height: 4MM ... stainless steel 667, SUS200, SUS201, SUS304, SUS316. DIN 985 nylon insert lock nut