Knife head ball joint with two bolt fitting for knife blades on Claas grain headers up to 17ft / 5.1m. APB heavy duty version with steel spherical join and grease nipple. Manufactured in Italy by 'APB' - Agri Parts Bologna and 100% interchangeable with the original. For standard version see item 0001001440CL. OEM Code 1001441 (20AP015342).