Stainless steel spring washers 1 Size:M2-M100 2 Standard:DIN BS JIS GB 3 Material:Carbon steel 65Mn SUS304 1. Standards1. ISO, DIN, AS/NZS, GB, ANSI and BS2. Material2. Stainless steel, carbon steel, copper, iron,spring steel and brass.3. Size3. M2-M1004. Certificate4. ISO9001:2000 RoHS certification 5. Features5. Good anti-corrosion ability,kinds of coatings 6. Grade6. 4.8, 6.8, 8.8, 10.9, 12.9 ...