DIN 605-1981
120°Flat countersunk head square neck bolts with long square
GB/T 21934-2008
Earth-moving machinery - Plough bolt
GB/T 10-1988
Flat countersunk head square neck bolts
GB/T 11-1988
Flat countersunk nib bolts
GB/T 800-1988
Countersunk head bolts with double nibs
GB/T 10-2013
Flat countersunk head square neck bolts
GB/T 11-2013
Flat countersunk nib bolts
CNS 4419-1981
Countersunk square bolts with short square
GOST 7785-1981
90° flat countersunk head nib bolts with reduced shank
GOST 7785-1981
60° flat countersunk head nib bolts with reduced shank
CNS 4697-1982
Countersunk bolts with double nip
PN 82402
120°Flat countersunk head square neck bolts with long square
GB/T 800-2020
Countersunk head bolts with double nibs