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 6564-1986
6-Lobe cheese head rolling screws
GB/T 6564.1-2014
6-Lobe cap head rolling screws
GB/T 6564.1-2014
6-Lobe cap knurled head rolling screws
Q 260-1999
6-Lobe cheese cheese head thread rolling screws
Q 260-2012
6-Lobe cheese head thread rolling screws
