Q 274-1999
Type H cross recessed countersunk head tapping screws-type A-type C
Q 275-1999
Type H cross recessed hexagon head tapping screws with indentation-type A-type F
Q 275-1999
Type H cross recessed hexagon head tapping screws with indentation-type A-type C
Q 277-1999
Type H cross recessed raised countersunk head tapping screws-type A-type F
Q 276-1999
Type H cross recessed raised countersunk head tapping screws-type A-type C
Q 280-1999
Slotted set screws with cone point
Q 284-1999
Hexagon socket set screws with flat point
Q 286-1999
Square set screws with long dog point
Q 288-1999
Hexagon socket set screws with cone point
Q 292-1999
Cross recessed round head wood screws
Q 294-1999
Cross recessed raised countersunk head wood screws
Q 296-1999
Cross recessed countersunk head wood screws
QC/T 612-1999
Hex nuts and disc spring combination
QC 300-1999
Hex nuts and disc spring combination
QC/T 356-1999
Nuts of automobile wheel large outer nut
QC/T 356-1999
Nuts of automobile wheel outer nut
QC/T 356-1999
Nuts of automobile wheel nut large single wheel nut
QC/T 356-1999
Nuts of automobile wheel nut single wheel nut
QC/T 356-1999
Nuts of automobile wheel large outer nut-Left Pitch
QC/T 356-1999
Nuts of automobile wheel outer nut-Left Pitch
