QC/T 379-2013
Tapered square head bolts
QC/T 379-2013
Square head bolts
Q 611-1999
Slotted cone plugs
Q 615-1999
Slotted columnar fine thread plugs
Q 616-1999
Slotted plunger plugs
Q 619-1999
Inner hexagon conical screw plugs
QC/T 377-1999
Slotted cylinder plug
QC/T 378-2013
Inner hexagon conical screw plug
QC/T 884-2011
Hexagon socket pipe magnetic plugs
QC/T 382-1999
Slotted cone plug
Q 614B-1999
Square head bolts
Q 614B-1999
Square head semi-tubular bolts
QC/T 379-1999
Square head bolts
QC/T 379-1999
Tapered square head bolts
Q 617B-1999
Hexagon head plugs
QC/T 376-1999
Hexagon head plug
Q 618B-1999
Hexagon taper plugs
Q 618B-1999
Hexagon semi-tubular taper plugs
QC/T 381-1999
Hexagon taper plug
QC/T 381-1999
Hexagon semi-tubular taper plug
