... , IFI, JIS, ISO,GB,ANSI 2)Washers type:flat ,spring ,lock,star 3)Accept customization Specifications of Washers: 1 Standard: DIN, ... Hot-dip Galvanizing5 Type 1) Spring washers 2) Flat washers(plain washer,IFI,ASTM) 3) Lock washers 4) Star washers 5) Square ... 50.50.50.811.61.61.622.52.533334)ASTM FLAT Washers Thread size(mm)4091241045409764091041037409724109814091640912d19/3211/3213/3217/324122913/1615 ...