... )Size: M4-M20 3) Material: low/medium carbon steel, Name: Cap nuts (DIN1587,JIS1183,GB923)Size: M4-M20 Material: Low Carbon ... / Yellow ZP/ White ZP/ Self Color/ Black/ Nickle Plated/ HDG/ Heat TreatmentPackaging:25kgs Carton Bulk,Normal Small Boxed,Gunny Bag,Special ... nuts(DIN985,DIN982) IFI Nylon lock nuts(IFI 100) Domed Cap nuts(DIN1587, JIS1183, GB923) Weld nuts(DIN928, DIN929, JIS1196) Flange ...