Slot
Cross recess
Hex socket
Square socket
Pozidriv recess
Round head
Raised countersunk head
Cheese
Straight-knurl
Reduced shank
Full thread
Plain washer
Large plain washer
Spring washer
Ex-teeth CSK washers
Ex-teeth washer
DIN 6901-1990
Cross recessed pan head tapping screws with type H cross recess-type C and plain washer assemblies
Cross recessed pan head tapping screws with type Z cross recess-type C and plain washer assemblies