GB/T 889.2-2000
Prevailing torque type hexagon nuts(with non-metallic insert),style 1-Fine pitch thread
GB/T 6182-2000
Prevailing torque type hexagon nuts(with non-metallic insert),style 2
GB/T 6182-2010
Prevailing torque type hexagon nuts(with non-metallic insert),style 2
GB/T 6182-1986
Prevailing torque type hexagon nuts(with non-metallic insert),style 2
GB/T 6183.1-2000
Prevailing torque type hexagon nuts with flange(with non-metallic insert),style 2
GB/T 6184-2000
Prevailing torque type all, metal nuts ,style 1
GB/T 6185.1-2000
Prevailing torque type all-metal hexagon nuts,style 2
GB/T 6185.2-2000
Prevailing torque type all-metal hexagon nuts,style 2—Fine pitch thread
GB/T 6186-2000
Prevailing torque type all-metal hexagon nuts,style 2-Property class 9
GB/T 6186-1986
Prevailing torque type all-metal hexagon nuts,style 2-Property class 9
GB/T 923-1988
Acorn hexagon nuts
GB/T 806-1988
Knurled nuts with collar
GB/T 807-1988
Knurled thin nuts
GB/T 62-1988
Wing nuts,round wing-type A
GB/T 62-1988
Wing nuts,round wing-type B
GB/T 816-1988
Round nuts with set pin holes in side
GB/T 815-1988
Round nuts with drilled holes in one face-type A
GB/T 815-1988
Round nuts with drilled holes in one face-type B
GB/T 6177.2-2000
Hexagon nuts with flange,style2-Fine pitch thread
GB/T 6183.2-2000
Prevailing torque type hexagon nuts with flange(with non-metallic insert),style 2-Fine pitch thread