GB/T 9074.21-1988
Cross recessed hexagon head tapping screw with indentation and large plain washer assemblies-type F
GB/T 9074.22-1988
Hexagon head tapping screw and plain washer assemblies-type C
GB/T 9074.22-1988
Hexagon head tapping screw and plain washer assemblies-type F
GB/T 9074.23-1988
Hexagon head tapping screw and large plain washer assemblies-type C
GB/T 9074.23-1988
Hexagon head tapping screw and large plain washer assemblies-type F
GB/T 9074.18-2017
Hexagon head tapping screw and plain washer assemblies-type C
GB/T 9074.18-2017
Hexagon head tapping screw and plain washer assemblies-type F
GB/T 9074.18-2017
Hexagon head tapping screw and large plain washer assemblies-type C
GB/T 9074.18-2017
Hexagon head tapping screw and large plain washer assemblies-type F
GB/T 9074.18-2017
Cross recessed pan head tapping screws and plain washer assemblies-type C-type H
GB/T 9074.18-2017
Cross recessed pan head tapping screws and plain washer assemblies-type F-type H
GB/T 9074.18-2017
Cross recessed pan head tapping screws and large plain washer assemblies-type C-type H
GB/T 9074.18-2017
Cross recessed pan head tapping screws and large plain washer assemblies-type F-type H
GB/T 9074.18-2017
Cross recessed pan head tapping screws and plain washer assemblies-type C-type Z
GB/T 9074.18-2017
Cross recessed pan head tapping screws and plain washer assemblies-type F-type Z
GB/T 9074.18-2017
Cross recessed pan head tapping screws and large plain washer assemblies-type C-type Z
GB/T 9074.18-2017
Cross recessed pan head tapping screws and large plain washer assemblies-type F-type Z
GB/T 9074.18-2017
Slotted pan head tapping screws and plain washer assemblies-type C
GB/T 9074.18-2017
Slotted pan head tapping screws and plain washer assemblies-type F
GB/T 9074.18-2017
Slotted pan head tapping screw and large plain washer assemblies-type C