Front Wheel Bolt

1/2" - 20 NF 7/8" thread---13/16" hex head
Fits: IH/Farmall models

5/8" - 18 NF 7/8" thread---3/4" hex head
Fits: Late H, Super H, Late M, Late MD, Super M, Super MD, MTA
300, 350, 400, 450
All with adjustable thread front wheels

9/16" - 18 NF 1-1/8" thread---7/8" hex head
Fits: Late 140, 240, 300U, 330, 340, 350U, B-250, B-275, B-414, 354, 364, 384, 404, 2404, 424
2424, 444, 2444, 460, 504, 544, 560, 606, 656, 660, 664, 666, 686, 706, 756, 766, 786, 806, 826
856, 886, 966, 986, 1026, 1066, 1086, 1206, 1256, 1456, 1466, 1468, 1486, 1566, 1586, 3088
3288, 3688, Hydro 70, 86, 100, 186