ISO 10510-S2-1999
Cross recessed pan head tapping screws and plain washer assemblies-type C-type Z
DIN 6901-1990
Cross recessed pan head tapping screws with type Z cross recess-type C and plain washer assemblies
JIS B1129-S2-2004
Cross recessed pan head tapping screws and plain washer assemblies-type Z-type C
NF E25-523-1999
Cross recessed pan head tapping screws and plain washer assemblies-type Z-type C
ISO 10510-S2-2011
Cross recessed pan head tapping screws and plain washer assemblies-type C-type Z
ISO 10510-2016
Cross recessed pan head tapping screws and plain washer assemblies-type C-type Z
GB/T 9074.18-2017
Cross recessed pan head tapping screws and plain washer assemblies-type C-type Z
GB/T 9074.18-2002
Cross recessed pan head tapping screws and plain washer assemblies-type C-type Z