GB/T 70.3-2008
Hexagon socket countersunk head screws
ISO 10642-2004
Hexagon socket countersunk head screws
DIN 7991-1986
Hexagon socket countersunk head screws
UNI 5933
Hexagon socket countersunk head screws
JIS B1194-2006
Hexagon socket countersunk head screws
NF E25-146-2004
Hexagon socket countersunk head screws
NF E25-106-1997
Hexagon socket countersunk head screws
GB/T 70.3-2000
Hexagon socket countersunk head screws
BS 4168-8-1982
Metric hexagon socket countersunk head screws
BS 4168-8-2012
Metric hexagon socket countersunk head screws
ISO 10642-1997
Hexagon socket countersunk head screws
ISO 10642-2008
Hexagon socket countersunk head screws
ISO 10642-2012
Hexagon socket countersunk head screws
Q 250-2012
Hexagon socket countersunk head screws
IS 6761-1972
Hexagon socket countersunk head screws
ASME/ANSI B18.3.5M-1986
Metric hex socket countersunk head screws
ASME/ANSI B18.3.5M-1993
Metric hex socket countersunk head screws
ASME/ANSI B18.3.5M-2002
Metric hex socket countersunk head screws
CNS 4558-1981
Hexagon socket countersunk head screws
GB/T 70.3-2023
Hexagon socket countersunk head screws with reduced loadability