Just the stud as shown.. found on late 60's to early 70's GM .. when fitted  with factory '69-72  type rotors.

Fitting up to 67-9 Camaro & Firebird and most aftermarket factory style rotor stud needs.but check yours first.

Has a long shank to start off with.

For DISC brake cars  .. not drum.

.. so many cars have had disc conversions but from Holden HQ, Chevy's...customs rotors &  god knows what else too..

7/16-20 Serrated Wheel Stud;  1-5/16 length

Check if its right first.