These are the front and rear wheel stud charts published in the November 1950 Ford Chassis Parts and Accessories Catalog. This provides a handy tool for identifying the many similar-but-different Model A and early V8 era hub bolts and wheel mounting studs.
1932-34 Front studs (Type 1) B-1107 have a head marking of "K".
1932-34 Rear studs (Type 1) B-1118 have a head marking of "B".