GB/T 32.1-1988
Hexagon bolts with wire holes on head
GB/T 32.2-1988
Hexagon head bolts with reduced shank
QJ 2365-1992
Hexagon bolts with wire holes on head
Q 170B-1999
Hexagon bolts with wire holes on head
Q 171B-1999
Hexagon bolts with wire holes on head-fine pitch thread
Q 171C-1999
Hexagon bolts with wire holes on head-fine pitch thread
TB/T 1479-1991
Axle end bolt for rail vehicle axle- hexagon head with hole bolts for rough pole
TB/T 1479-1991
Axle end bolt for rail vehicle axle-hexagon head with hole bolts for fine rod
Q 170B-2012
Hexagon bolts with wire holes on head
Q 171B-2012
Hexagon bolts with wire holes on head-fine pitch thread
Q 171C-2012
Hexagon bolts with wire holes on head-fine pitch thread
GOST 7795-1970
Hexagonal head guide neck bolts with hole on head
GOST 7798-1970
Hexagon bolts with wire holes on head
GOST 7805-1970
Hexagon bolts with wire holes on head
GOST 7808-1970
Hexagon bolts with wire holes on head
GOST 7811-1970
Hexagonal head guide neck bolts with hole on head
GOST 15589-1970
Hexagon bolts with wire holes on head
GOST 15590-1970
Hexagonal head guide neck bolts with hole on head
GOST 15591-1970
Hexagon bolts with wire holes on head
DS 51417-1999
Metric hexagon bolts fine thread with wire holes on head
