size:M3 to M36,NO.6 to 1-1/2'' standards:DIN127,JIS B1251&IFIL-9 70c,sus304&sus316 material:carbon steel,alloy steel,ss steel Description:Spring Washersize:M3 to M36,NO.6 to 1-1/2''standards:DIN127,JIS B1251&IFIL-970c,sus304&sus316material:carbon steel,alloy steel,ss steelouter packing:carbon or poly bag +pallet