Hex chamfered single face
Round head
Countersunk head
Raised countersunk head
Cheese
Hex with collar
Round head with collar
Undercut countersunk head
Raised Undercut countersunk head
Low cheese head
Raised cheese
Hex chamfered double faces
GB/T 6564.1-2014
6-Lobe cap knurled head rolling screws
DIN 7500E-2000
Hexagon socket knurled head rolling screws
DIN 7500E-2007
Hexagon socket knurled heads rolling screws
DIN 7500O-2007
6-Lobe knurled cap head rolling screws
DIN 7500E-2009
Hexagon socket knurled head rolling screws
DIN 7500O-2009
6-Lobe knurled cap head rolling screws
