din440 flat washer 1.material:metal 2.standard size 3.place of origin:china 4.MOQ:100 pcs din440 flat washer1.Grade: 4.8, A2, A42.Size: M3-M523.Finish:plain, zinc plated, hot dip galvanized, dacroment4.Material:Carbon steel, stainless steel 5.Packing: Standard export packing or According to customer's requirement1)flat Washersunit:mm d11.71.82.22.52.72.83.23.74.35.36.47.48.410.5131517192123d244. ...