GB/T 2148-1991
Hexagon nuts with shoulder
GB/T 802.3-2009
Acorn hexagon nuts with flange—Welding type
GB/T 802.4-2009
Hexagon cap nuts — Welding type
GB/T 62.3-2004
Wing nuts,pressing wing-type A
GB/T 62.3-2004
Wing nuts,pressing wing-type B
GB/T 802.5-2009
Prevailing torque type hexagon acorn nuts with non-metallic insert - Welding type
GB/T 62.4-2004
Wing nuts,die-casting wing
GB/T 6183.1-2016
Prevailing torque type hexagon nuts with flange(with non-metallic insert),style 2
GB/T 812-1988
Round nuts(d≤M100)
GB/T 812-1988
Round nuts(d≥M105)
GB/T 6183.2-2016
Prevailing torque type hexagon nuts with flange(with non-metallic insert),style 2-Fine pitch thread
GB/T 39-1988
Square nuts
GB/T 6172.1-2016
Hexagon thin nuts(chamfered)
GB/T 801-1998
Cup head square neck bolts with small head and short neck
GB/T 808-1988
Small hexagon thin nuts -Very fine pitch threa
GB/T 808-1988
Small hexagon thin nuts - fine pitch thread
GB/T 808-1988
Single chamfered small hexagon thin nuts - Very fine pitch thread
GB/T 808-1988
Single chamfered small hexagon thin nuts - Fine pitch threa
GB/T 809-1988
Insert round nuts —Type A
GB/T 809-1988
Insert round nuts —Type B
