GB/T 6187.1-2000

Prevailing torque type all-metal hexagon nuts with flange,style 2

GB/T 6187.2-2000

Prevailing torque type all-metal hexagon nuts with flange, style 2，Fine pitch thread

GB/T 929-1988

Self-locking nuts,singlelug,anchor

GB/T 930-1988

Self-locking nuts,twolug,anchor-type A

GB/T 930-1988

Self-locking nuts,twolug,anchor-type B

GB 1007-1976

Hexagon thin nuts

GB 1007-1976

Hexagon thin nuts-Left Pitch

GB/T 1229-1991

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

GB/T 1337-1988

Hexagon self-locking nuts

GB/T 1338-1988

Small hexagon self-locking nuts

GB 1339-1977

Small hexagon self-locking nuts

GB/T 1339-1988

Small hexagon self-locking nuts

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 9160.2-1-2006

4 Slots lock nuts for use with rolling bearings(d≤200mm)-Table 1

GB/T 9160.2-1-2006

4 Slots lock nuts for use with rolling bearings(d≥210mm)-Table 1

GB/T 9160.2-2-2006

4 Slots lock nuts for use with rolling bearings-Table 2