CASE IH International McCormick Tractor 3 Point Hitch Check Chain Left Hand Threaded Clevis. This is sometimes called reverse threaded. You can tell which one you need by looking at the threaded stud. The end WITHOUT the lock nut is LH threaded. This is part of the sway check assembly. These are used in many International Case IH and McCormick tractors manufactured since the early 1970s thru Current models PN# 1537495C1 These are for the outside check chain assemblies on the following models using a CAT 2 Hitch. 54, 64, 74, 85, 95, 3200, 4200, C and CX tractors. These sell for over $32 each at the dealer so save here Very high quality Save here L4A4