GB/T 2670.1-2004
6-Lobe pan head tapping screws-type C
GB/T 2670.1-2004
6-Lobe pan head tapping screws-type R
GB/T 2670.1-2004
6-Lobe pan head tapping screws-type F
GB/T 2670.2-2004
6-Lobe 90°flat head tapping screws-type C
GB/T 2670.2-2004
6-Lobe 90°flat head tapping screws-type R
GB/T 2670.2-2004
6-Lobe 90°flat head tapping screws-type F
GB/T 2670.3-2004
6-Lobe 90°oval head tapping screws-type C
GB/T 2670.3-2004
6-Lobe 90°oval head tapping screws-type R
GB/T 2670.3-2004
6-Lobe 90°oval head tapping screws-type F
GB/T 2670.1-2017
6-Lobe pan head tapping screws-type C
GB/T 2670.1-2017
6-Lobe pan head tapping screws-type R
GB/T 2670.1-2017
6-Lobe pan head tapping screws-type F
GB/T 2670.2-2017
6-Lobe 90°flat head tapping screws-type C
GB/T 2670.2-2017
6-Lobe 90°flat head tapping screws-type R
GB/T 2670.2-2017
6-Lobe 90°flat head tapping screws-type F
GB/T 2670.3-2017
6-Lobe 90°oval head tapping screws-type C
GB/T 2670.3-2017
6-Lobe 90°oval head tapping screws-type R
GB/T 2670.3-2017
6-Lobe 90°oval head tapping screws-type F