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
NF E25-656-1983
Cross recessed countersunk head tapping screws-type F-type H
NF E25-656-1983
Cross recessed countersunk head tapping screws-type F-type Z
NF E25-656-1994
Cross recessed countersunk head tapping screws-type F-type H
NF E25-656-1994
Cross recessed countersunk head tapping screws-type F-type Z
NF E25-656-2011
Cross recessed countersunk head tapping screws-type F-type H
NF E25-656-2011
Cross recessed countersunk head tapping screws-type F-type Z
