DIN 908-1992
Hexagon socket screw plugs
DIN 909-1992
Hexagon head pipe plugs(d≤18mm)
DIN 910-1992
Heavy-duty hexagon head screw plugs
DIN 7604-1992
Light-Duty Hexagon Head Screw Plugs(d≤16mm)
DIN 7604-1992
Light-Duty Hexagon Head Screw Plugs(d≤16mm)
DIN 7604-1992
Light-Duty Hexagon Head Screw Plugs(d≥18mm)
DIN 7604-1992
Light-Duty Hexagon Head Screw Plugs(d≥18mm)
DIN 909-1992
Hexagon head pipe plugs(d≥20mm)
DIN 909-1992
Inch hexagon head pipe plugs(d≤18mm)
DIN 909-1992
Inch hexagon head pipe plugs(d≥20mm)
QC/T 379-2013
Tapered square head bolts
QC/T 379-2013
Square head bolts
JB/ZQ 4452-2006
Cheese head screws plug
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
DIN 906-1992
Metric hexagon socket pipe plugs
DIN 906-1992
Hexagon socket pipe plugs
QC/T 377-1999
Slotted cylinder plug
