The McCormick 881162M2 is a genuine OEM hex nut designed for various agricultural machinery, primarily Massey Ferguson tractors. This M16x1.5 threaded nut features a 13mm height and requires a 24mm wrench for installation. It is a direct replacement for original parts 881162M1 and 881162M3, ensuring secure fastening and reliable performance in demanding applications. Confirmed fitment includes numerous Massey Ferguson models such as the MF 135, MF 165, MF 240, MF 265, MF 290, and models from the 500 and 600 series.