... ) Size: M4 - M16 3) Material: low / medium carbon steel Name: Wing nuts (DIN315)Size:M4-M16 Material: Low Carbon Steel,Middle ... , GB923) Weld nuts(DIN928, DIN929, JIS1196) Flange nuts(DIN6923, JIS1190) Wing nuts(DIN315) Slotted castle nuts(DIN935) Square nuts(DIN557) Hex ...