Abstract: In GB/T 10433-2002, clause 4 and appendix A has defined mechanical properties and welding property respectively of cheese headed studs, but there was a conflict exist between the clause 4 and appendix A when came to the requirement for tensile strength. Meanwhile, the requirements for these two properties were the same in JIS B 1198-1995. Therefore, a query was raised due to the conflict of the requirement in the GB/T 10433-2002.