GB/T 6564-1986
6-Lobe cheese head rolling screws
GB/T 6562-2014
Cross recessed raised countersunk head thread rolling screws-type H
GB/T 6562-2014
Cross recessed raised countersunk head thread rolling screws-type Z
GB/T 6564.1-2014
6-Lobe cap head rolling screws
GB/T 14210-1993
Dry wall screws
GB/T 15856.4-2002
Hexagon flange head drilling screw with tapping screw thread
GB/T 15856.5-2002
Hexagon head self-drilling and tapping screws with collar
GB/T 16824.1-2016
Hexagon washer head tapping screws—Type C
GB/T 16824.2-2016
Hexagon flange head tapping screws —Type C
GB/T 6564.1-2014
6-Lobe cap knurled head rolling screws
GB/T 15856.1-2002
Cross recessed pan head drilling screws with tapping screw thread-type H
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 15856.1-2002
Cross recessed pan head drilling screws with tapping screw thread-type Z
GB/T 15856.2-2002
Cross recessed countersunk head drilling screws with tapping screw thread-type H
GB/T 15856.2-2002
Cross recessed countersunk head drilling screws with tapping screw thread-type Z
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
