... FOB NINGBOSpecifications(1). Product: Washer(2). Standard: DIN125(3). Grade:DIN125A(4). Size: M20(5). Material: 40Cr(6). Coating ... Bolts StandardDIN931,DIN933,DIN6914,ASTM A325M,ASTMA325, ASTM A-10,ASTM490M and other you would like to ... 8.8,10.9,12.9 and others you needMaterial 45#, 40Cr, 35CrMoA, 42CrMoA, 25Cr2MoVA, 35VB, 40CrNiMo,Stainless ... of manufacturing fasteners DIN125 M20 Flat Washer Grade A