GB 22-1976
Hexagon reduced head bolts with guide neck
GB/T 73-1985
Slotted set screws with flat point
GB/T 73-2017
Slotted set screws with flat point
GB/T 9074.1G-2018
Hexalobular socket pan head screws and spring washer assemblies
GB/T 9074.1G-2018
Hexalobular socket pan head screws and small plain washer assemblies
GB/T 9074.1G-2018
Hexalobular socket pan head screws，small plainand spring washer assemblies
GB/T 70.1-2008
Hexagon socket knurled head cap screws
GB/T 70.1-2000
Hexagon socket knurled head cap screws
GB/T 9074.13G-1988
Cross recessed hexagon head bolt with indentation , spring and large plain washer assemblies
GB/T 9074.4-1988
Cross recessed pan head screws,small plain and spring washers assemblies
GB/T 9074.5-2004
Cross recessed small pan head screw and small plain washer assemblies
GB/T 9074.8G-1988
Cross recessed small pan head screw, small plain and spring washer assemblies
GB/T 9074.8G-1988
Cross recessed small pan head screw, large plain and spring washer assemblies
GB/T 5786-1986
Hexagon head bolts with fine pitch thread
GB/T 6171-1986
Hexagon nuts,style 1,with fine pitch ehread
GB/T 6171-1986
Single chamfered small hexagon nut,style 1,with fine pitch ehread
GB/T 6172-1986
Hexagon thin nuts(chamfered)
GB/T 6177-1986
Hexagon nuts with flange
GB/T 6183-1986
Prevailing torque type hexagon nuts with flange(with non-metallic insert)
GB/T 9074.5-2004
Cross recessed small pan head screw and plain washer assemblies
