curved spring washer/Plain washer/spring washer/wave washer/saw washer/dish washer Material: Brass, Galvanized, Stainless steel curved spring washer/Plain washer/spring washer/wave washer/saw washer/dish washer1)Material: Brass, Galvanized, Stainless steel210, 304, 3162)Standard: DIN 934, 439, 6923, 982, 985, 1587, 557, 125, 127, 9021;ANSI/ASME B18.2.23)Size: M1.6~M42 (Metric), #8~1"INCH)