Hex chamfered single face
Hex with flange
Round head
Countersunk head
Raised countersunk head
Hex with collar
Round head with collar
Countersunk head with rib
Undercut countersunk head
Bugle head
Raised Undercut countersunk head
Low cheese head
Raised cheese
Hex chamfered double faces
GB/T 14210-1993
Dry wall screws
DIN 7505A-1986
Particle board screws with cross recess type Z,countersunk head
DIN 7505B-1986
Particle board screws with cross recess type Z,pan head
DIN 7505C-1986
Particle board screws with cross recess type Z,raised countersunk head
