Round head
Countersunk head
Raised countersunk head
Cheese
Round head with collar
Low cheese head
Raised cheese
ISO 14581-2013
6-Lobe 90° flat head screws
ISO 14582-2013
6-Lobe 90° flat head screws
ISO 14582-2018
6-Lobe 90° flat head screws
ISO 14581-2023
6-Lobe 90° flat head screws without underhead reinforcement
ISO 14581-2023
6-Lobe 90° flat head screws with underhead reinforcement