Hexagon nuts UNI-5588 DIN 4032 (ex DIN 934) for Schunk pantograph SBE 920 Tram Stanga M12 Stainless steel A2-70 100 pcs Hexagon head screws UNI 5739 DIN 4017 (ex DIN 933) for Schunk pantograph SBE 920 Tram Stanga m12x25 Stainless steel A2-70 100 pcs Conical spring washers UNI 8836 for Schunk pantograph SBE 920 Tram Stanga 12x2,8 - x5 CrNi 1819 500 pcs