... /20'spring steel SpecificationsName: DIN127B M16 stainless steel spring washer spring steel Usage: usually used in building and engineer ... standard including: DIN, USS, SAE, NEF, GB, JIS …² Plain washer: DIN 125, DIN 9021 , DIN 1052 , DIN 440 , DIN ... BS4320, DIN1441, DIN 7989, USS washer , Fender washer , Non-standard washer² Spring washer: DIN 127B, DIN 7980...² Square washer: DIN 434, DIN435,DIN 436 ...