6-Lobe
6-Lobe with pin
Round head
Countersunk head
Raised countersunk head
Cheese
Round head with collar
Low cheese head
Raised cheese
Straight-knurl
Reduced shank
Normal shank
Shoulder
Full thread
GB/T 2672G-2017
6-Lobe pan head screws with pin
GB/T 2673G-2007
6-Lobe 90° flat head screws with pin