Tyre valve threads

In "tire valve thread (GB 9765-2009)", the minor diameter of 5v2 external thread is modified from 4.200 to 4.300 (Table 2 in 4.1 of 1997 edition and table 2 in 4.1 of this edition);

The screw code, thread profile, limit dimension and tolerance of valve thread 5cv and 8cv are added (Table 1, figure 2 and table 2 of this edition). Appendix A and Appendix B of this standard are informative. This standard is proposed by China Petroleum and Chemical Industry Association. This standard is under the jurisdiction of the National Technical Committee for tire and rim standardization.