Q 215-1999
6-Lobe pan head screws
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 386-1999
Magnetic core
QC/T 884-2011
Hexagon socket pipe magnetic plugs
Q 210-1999
6-Lobe cap screws
Q 214-1999
Pan head screws cross recess
Q 218B-1999
Hexagon socket plain heads cap screws
Q 254-1999
Countersunk flat head screws cross recess
Q 256-1999
Cross recessed raised countersunk head screws
Q 257-1999
6-Lobe 90° oval head screws
Q 258-1999
6-Lobe 90° flat head screws
Q 280-1999
Slotted set screws with cone point
Q 284-1999
Hexagon socket set screws with flat point
