GOST 7798-1970
Hexagon bolts with split pin hole on shank
GOST 7805-1970
Hexagon bolts with split pin hole on shank
GOST 7808-1970
Hexagon bolts with split pin hole on shank
GOST 7808-1970
Upset type hexagonal bolts with split pin hole on shank
GOST 10602-1972
Hexagon bolts with split pin hole on shank
GOST 10602-1994
Hexagon bolts with split pin hole on shank
GOST 15589-1970
Hexagon bolts with split pin hole on shank
GOST 15591-1970
Hexagon bolts with split pin hole on shank
GOST 18125-1972
Hexagon bolts with split pin hole on shank