2 products Ringfeder® drawbar eye type 480 - complete A high-quality Ø50 mm towing eye for use with 50 mm bolt couplings (DIN 74052). With a D-value of 320 Nm this drawbar eye is suited for very heavy loads and heavy-duty operation. Including drawbar eye... Ringfeder® drawbar eye type 470 A high-quality Ø50 mm towing eye for use with 50 mm bolt couplings (DIN 74052). The drawbar eye is supplied with screw kit 14990561.