Rear Wheel Nut
CTP8N1134 Replacement Part to Fit:  Ford For rear wheel disc to brake drum on 8N (1948-1952). For disc to rim on NAA, 600, 700, 800, 900, 2000, 4000, (1948-1964); 5/8" x 18 tapered.  Price:  $0.94  Buyers Club Price:  $0.85