The specification covers the requirements for locked-in studs. The method of locking in the stud is by means of a serrated collar and an accessory lockring with matching serrations installed within the parent material to prevent rotation.
SAE AS45909-2007 history
2015SAE AS45909A-2015 Stud@ Locked In@ Ring Locked@ Serrated@ General Specification For
2007SAE AS45909-2007 Stud@ Locked In@ Ring Locked@ Serrated@ General Specification For