GB/T 16674.2-2016
Hexagon bolts with flange with metric fine pitch thread—Small series—Type U
GB/T 828-1988
Slotted pan head set screws with dog point(long:L>d)
GB/T 16674.2-2004
Hexagon bolts with flange with metric fine pitch thread—Small series—Type F
GB/T 16674.2-2004
Hexagon bolts with flange with metric fine pitch thread—Small series—Type U
ISO 4014-2001
Hexagon head bolts
ISO 4014-1999
Hexagon head bolts
GB/T 70.3-2008
Hexagon socket countersunk head screws
SH/T 3404-1996
Fasteners for pipe flanges—Hexagon head bolts
GB/T 70.2-2008
Hexagon socket button head screws
GB/T 70.2-2015
Hexagon socket button head screws
GB/T 70.1-2008
Hexagon socket head cap screws
GB/T 70.4-2015
Hexagon socket button head screws with collar
GB/T 70-1976
Hexagon socket head cap screws
SH/T 3404-1996
Fasteners for pipe flanges—Double end studs
GB/T 79-2007
Hexagon socket set screws with dog point
SH/T 3404-1996
Fasteners for pipe flanges—Hexagon nuts with type I
SH/T 3404-1996
Fasteners for pipe flanges—Hexagon nuts with type II
GB/T 5281-1985
Hexagon socket head shoulder screws
GB/T 5281-1985
Knurled hexagon socket head shoulder screws
GB 29-1976
Slotted hexagon bolts