GB/T 6178-1986

Hexagon slotted and castle nuts,style 1

GB/T 9457-1988

Hexagon slotted and castle nuts,style 1,Fine pitch thread

GB/T 6181-1986

Hexagon thin slotted nuts

GB/T 6179-1986

Hexagon slotted nuts,style 1

GB/T 6180-1986

Hexagon slotted and castle nuts,style 2

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 9459-1988

Hexagon slotted nuts with fine pitch-thread

DIN 935-1-1987

Hexagon slotted and castle nuts(big on edge)

DIN 935-1-1987

Hexagon slotted and castle nuts

DIN 935-3-1987

Hexagon slotted nuts with metric coarse pitch thread (big on edge)

DIN 935-3-1987

Hexagon slotted nuts with metric coarse pitch thread

DIN 937-1983

Hexagon thin castle nuts

DIN 979-1987

Hexagon thin slotted and castle nuts(big on edge)

DIN 979-1987

Hexagon thin slotted and castle nuts

BS 3692-2001

Hexagon slotted and castle nuts

BS 1083-1965

Slotted hexagon nuts

BS 1768-1963

Slotted hexagon nuts

BS 1768-1963

Slotted hexagon thick nuts

ASME/ANSI B18.2.2-5-2015

Hexagon slotted nuts-Table 5