Round head
Countersunk head
Raised countersunk head
Cheese
Round head with collar
Undercut countersunk head
Raised Undercut countersunk head
Low cheese head
Raised cheese
Cheese with hole
Countersunk Cheese head
Large cheese head
CNS 4357-1980
Slotted pan head screws
CNS 4411-1981
Slotted countersunk (flat) head screws
CNS 4360-1980
Slotted pan head screws with small head
CNS 9672-1988
Slotted truss (or mushroom) head machine screws
