... .Thickness:0.5-8mm 3.Grade:4.8-12.9,A2-70,A4-80,etc 4.ISO,ROHS Specificationsdin127 spring washers ... .Thickness:0.5-8mm 3.Grade:4.8-12.9,A2-70,A4-80,etc 4.ISO,ROHSdin127 1. Various kinds ... -100mm3. Thickness: 0.5-8mm4. Grade: 4.8-12.9, A2-70, A4-80, ect5. Material of spring washer: Stainless steel ...