6 screws - includedDrawbar eye Ø 57 mm. In accordance with ECE 55R, class S.In accordance with standards SS 550000-2 category 3 and SS 550100-2 D57SPECIFICATIONSWeight 19 kgEU coupling class SDrawbar eye Ø 57 mmPERFORMANCE VALUESAlternative1 Alternative2D value (kN) 290 290Dc value (kN) 145 150S value (kg) 1000 2000V value (kN) 95 75