GB/T 6178-1986
Crown nut with slot,style 1
GB/T 9458-1988
Crown nut with slot,style 2,Fine pitch thread
DIN 935-1-1987
Crown nut with slot(big on edge)
DIN 935-1-1987
Crown nut with slot
DIN 937-1983
Crown nut with thin slot
DIN 937-1983
Crown thin nut with slot
DIN 979-1987
Crown thin nut with slot(big on edge)
DIN 979-1987
Crown thin nut with slot
BS 3692-2001
Crown nut with slot
JB/ZQ 4331-2006
Crown nut with slot
JIS B1170-1-2001
Type 2 fine hexagon slotted nuts-Table 1
JIS B1170-1-2001
Type 4 fine hexagon slotted nuts-washer faced-Table 1
JIS B1170-1-2001
Type 2 medium hexagon slotted nuts-Table 1
JIS B1170-1-2001
Type 4 medium hexagon slotted nuts-washer faced-Table 1
JIS B1170-1-2001
Type 2 fine hexagon slotted thin nuts-Table 1
JIS B1170-1-2001
Type 4 fine hexagon slotted thin nuts-washer faced-Table 1
JIS B1170-1-2001
Type 2 medium hexagon slotted thin nuts-Table 1
JIS B1170-1-2001
Type 4 medium hexagon slotted thin nuts-washer faced-Table 1
JIS B1170-2001
Type 2 fine small hexagon slotted nuts-Table 2
JIS B1170-2-2001
Type 4 fine small hexagon slotted nuts-washer faced-Table 2