Countersunk head
Raised countersunk head
Countersunk head square neck
Countersunk head with nib
Square countersunk head
Countersunk Cheese head
T-head countersunk
GB/T 10-2013
Flat countersunk head square neck bolts
GB/T 11-2013
Flat countersunk nib bolts
JIS B1179-3-2009
Slotted flat head bolt-Finished-Table 3
JIS B1179-4-2009
Slotted flat head bolt-Rough Table 4
JIS B1179-5-2009
Flat head bolt with reverse key -Rough Table5
CNS 4418-1981
Countersunk square bolts with long square
CNS 4419-1981
Countersunk square bolts with short square
GOST 7785-1981
90° flat countersunk head nib bolts
GOST 7785-1981
60° Flat countersunk head nib bolts
GOST 7785-1981
90° flat countersunk head nib bolts with reduced shank
GOST 7785-1981
60° flat countersunk head nib bolts with reduced shank
GOST 7786-1981
90° Flat countersunk head square neck bolts
GOST 7787-1981
40°Deep countersunk head bolts
GOST 17673-1981
120° Countersunk square bolts
CNS 4417-1981
90° Countersunk head nib bolts
CNS 4417-1981
60°Countersunk head nip bolts
GOST 29293-1992
90° Flat countersunk head square neck bolts
CNS 4420-1981
Countersunk head bolts with forged slot for steel structures
CNS 4573-1981
8°Countersunk bolts for drawing instruments
CNS 4697-1982
Countersunk bolts with double nip
