DIN 127 spring washer 1) Size: M3-M64,No.6-1-1/4" ... , BS, IFI, JIS ISO, GB and NON STANDARD, DIN 127 spring washer 1) Size: M3-M64,No.6-1-1/42 ... , sheradizing.4)Material:Carbon steel,Stainless steel,brass (70#,SS304,SS316,Q235B,45#,50#,65Mn)brass, phosphorus copper ,beryllium copper, Aluminium ...