Hex chamfered single face
Round head
Countersunk head
Raised countersunk head
Cheese
Square
Low cheese head
Square with collar
GB/T 80-2007
Hexagon socket set screwss with cup point
GB/T 80-2000
Hexagon socket set screwss with cup point
GB/T 80-1985
Hexagon socket set screwss with cup point