GB/T 6177.1-2016
Hexagon nuts with flange，style 2
GB/T 6177.2-2016
Hexagon nuts with flange，style2-Fine pitch thread
ISO 4161-1999
Hexagon nuts with flange
DIN 6923-1983
Hexagon nuts with flange
JG/T 5057.29-1995
Construction machinery and equipment High strength fasteners
EN 1661-1998
Hexagon nuts with flange
SJ 2842-1987
Hexagon flange nuts
Q 320-1999
Hexagon nuts with flange
Q 320-1999
Hexagon nuts with flange)
QC/T 613-1999
Hexagon nuts with flange
Q 321-1999
Hexagon nuts with flange
JIS B1190-1987
Hexagon nuts with flange
NF E25-406-1998
Hexagon nuts with flange
NF E25-406-2004
Hexagon nuts with flange
NF E25-406-1984
Hexagon nuts with flange
GB/T 6177.1-2000
Hexagon nuts with flange，style 2
EN 1661-2003
Hexagon nuts with flange
EN 1661-2008
Hexagon nuts with flange
ISO 4161-2012
Hexagon nuts with flange
ISO 4161-2017
Hexagon nuts with flange
