3 products Ringfeder® drawbar eye type 480 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. The fastening plate i... Ringfeder® drawbar eye type 470 A high-quality Ø50 mm towing eye for use with 50 mm bolt couplings (DIN 74052). The eye is supplied with a fastening plate. Ringfeder® drawbar eye type 440 A high-quality Ø40 mm towing eye for use with 40 mm bolt couplings (DIN 74051). The eye is supplied with a fastening plate.