QC/T 598-1999
Type B flange weld bolt
Q 194B-1999
Small square head bolts
Q 198-1999
Type A flange weld bolts
Q 198B-1999
Type B flange weld bolt
Q 198C-1999
Type C flange weld bolt
Q 199-1999
Face projection welding bolt
Q 199B-1999
Face projection welding bolt
QC/T 599.1-1999
Type A face projection welding bolt
QC/T 599.1-1999
Type B face projection welding bolt
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 220-1999
Type H cross recessed pan head tapping screws and plain washer assemblies-type A-type F
Q 220-1999
Type H cross recessed pan head tapping screws and plain washer assemblies-type A-type C
Q 221-1999
Type H cross recessed pan head tapping screw and large plain washer assemblies-type A-type C
Q 221-1999
Type H cross recessed pan head tapping screw and large plain washer assemblies-type A-type F
Q 230-1999
Cross recessed pan head screws and plain washers assemblies
Q 232-1999
Cross recessed pan head screws and spring washers assemblies
Q 234-1999
Cross recessed pan head screws and external teeth serrated lock washers assemblies
Q 236-1999
Cross recessed pan head screws, plain and spring washers assemblies
