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
DIN 963-1990
90°Slotted countersunk head screws
GB/T 68-2016
Slotted countersunk flat head screws
ISO 2009-1994
Slotted countersunk flat head screws
BS 1981-4-1991
80°Slotted countersunk head screws-Table 4
BS 1981-6-1991
80°Slotted countersunk head screws(truncated)-Table 6
QJ 2373-1992
Slotted countersunk head screws
JIS B1101-3-1996
Slotted countersunk flat head screws-Table 3
NF E25-123-1994
Slotted countersunk flat head screws
NF E25-123-2011
Slotted countersunk flat head screws
NF E25-123-1984
Slotted countersunk flat head screws
ISO 2009-2011
Slotted countersunk flat head screws
GB/T 68-2000
Slotted countersunk flat head screws
GB/T 68-1985
Slotted countersunk flat head screws
BS 450-2-1958
Slotted 90° countersunk flat head screws-Table 2
BS 450-11-1958
Slotted 90° countersunk flat head screws-Table 11
BS 450-2-2012
Slotted 90° countersunk flat head screws-Table 2
BS 450-2-2017
Slotted 90° countersunk flat head screws-Table 2
BS 450-11-2012
Slotted 90° countersunk flat head screws-Table 11
BS 450-11-2017
Slotted 90° countersunk flat head screws-Table 11
BS 1981-4-2004
80°Slotted countersunk head screws-Table 4
