GB/T 6180-1986

Hexagon slotted and castle nuts,style 2

GB/T 18230.3-2000

Hexagon nuts for high-structural bolting with large width across flats—Property classes 8 and 10

GB/T 18230.3-2000

Hexagon nuts for high-structural bolting with single chamfered large width across flats—Property classes 8 and 10

GB/T 6180-1986

Crown nut with slot,style 2

GB/T 9458-1988

Hexagon slotted and castle nuts,style 2,Fine pitch thread

GB/T 9458-1988

Crown nut with slot,style 2,Fine pitch thread

GB/T 18230.6-2000

Hexagon nuts for structural bolting,style 1,hot-dip galvanized—Property classes 5、6 and 8

GB/T 18230.6-2000

Single chamfered hexagon nuts for structural bolting,style 1,hot-dip galvanized—Property classes 5、6 and 8

GB/T 18230.7-2000

Hexagon nuts for structural bolting,style 2,hot-dip galvanized—Property class 9

GB/T 18230.7-2000

Single chamfered hexagon nuts for structural bolting,style 2,hot-dip galvanized—Property class 9

GB/T 9459-1988

Hexagon slotted nuts with fine pitch-thread

GB/T 1229-2006

Hexagon nuts for high strength structural bolting with large width across flats—Property classes 8 and 10

GB/T 62.1-2004

Wing nuts,round wing-type A

GB/T 62.1-2004

Wing nuts,round wing-type B

GB/T 13807.3-1-2008

Type G hexagon nuts(Class TC)-Table 1

GB/T 62.2-2004

Wing nuts,square wing

GB/T 13807.3-1-2008

Type P hexagon nuts(Class TC)-Table 1

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