5/8 inch X 2-7/8 inch NF special head bolt to fasten rear center disc to rim.

5/8 inch-18 Zinc grade 5 hex nut thread fine thread

9/16 x 2 inch -18 NF, Rear wheel stud, For models TEA 20, TE 20,TO 20, TO 30, TO 35, 35 , MHF50 135, 150, 230, 235, 240, 245, Industrial 30, 2135, 2200 and 3165

9/16 inch -18 NF, Rear wheel nut, For models TEA 20, TE 20,TO 20, TO 30, TO 35, 35 , MHF50 135, 150, 230, 235, 240, 245, Industrial 30, 2135, 2200 and 3165. Use on 185400M1 stud