GB/T 810-1988
Small round nuts(d≤M100)
GB/T 810-1988
Small round nuts(d≥M105)
DIN 981-1983
Locknuts for use with rolling bearings—Type 1
DIN 981-1983
Big lock nuts for use with rolling bearings-Type 1
DIN 1804-1971
Slotted round nuts for hook spanner,ISO metric fine thread
JB/ZQ 4328-2006
Round nuts
JB/T 1700.2-1991
Lock nut
Q 391-1999
Round nuts
BS 4185-1-1-1967
Metric slotted round nuts-Table 1
BS 4185-1-1-2002
Metric slotted round nuts-Table 1
BS 4185-1-1-2007
Metric slotted round nuts-Table 1
BS 4185-1-1-2012
Metric slotted round nuts-Table 1
BS 4185-1-1-2017
Metric slotted round nuts-Table 1
Q 391-2012
Round nuts
CNS 4465-1978
Slotted Round Nut
CNS 4729-1984
Round nuts
PN 82471
Slotted round nuts for hook spanner,ISO metric fine thread
DIN 1816-1971
Round nuts with set pin holes in side
PN 82466
Round nuts with set pin holes in side
GB/T 9160.2-1-2006
4 Slots lock nuts for use with rolling bearings(d≤200mm)-Table 1