Round head
Countersunk head
Raised countersunk head
Round head with collar
Countersunk head with rib
Undercut countersunk head
Bugle head
Raised Undercut countersunk head
Raised cheese
GB/T 950-1986
Cross recessed round head wood screws
GB/T 951-1986
Cross recessed countersunk head wood screws
GB/T 952-1986
Cross recessed raised countersunk head wood screws
GB/T 845-1985
Cross recessed pan head tapping screws-type C -type H
GB/T 845-1985
Cross recessed pan head tapping screws-type F -type H
GB/T 845-1985
Cross recessed pan head tapping screws-type C -type Z
GB/T 845-1985
Cross recessed pan head tapping screws-type F -type Z
GB/T 846-1985
Cross recessed countersunk head tapping screws-type C -type H
GB/T 846-1985
Cross recessed countersunk head tapping screws-type F -type H
GB/T 846-1985
Cross recessed countersunk head tapping screws-type C -type Z
GB/T 846-1985
Cross recessed countersunk head tapping screws-type F -type Z
GB/T 847-1985
Cross recessed raised countersunk head tapping screws-type C -type H
GB/T 847-1985
Cross recessed raised countersunk head tapping screws-type C -type Z
GB/T 847-1985
Cross recessed raised countersunk head tapping screws-type F -type H
GB/T 847-1985
Cross recessed raised countersunk head tapping screws-type F -type Z
ISO 7049-1983
Cross recessed pan head tapping screws-type C-type H
ISO 7049-1983
Cross recessed pan head tapping screws-type C-type Z
ISO 7049-1983
Cross recessed pan head tapping screws-type F-type H
ISO 7049-1983
Cross recessed pan head tapping screws-type F-type Z
DIN 7981-1990
Cross recessed pan head tapping screws-type C-type H
