GB/T 31.3-1988
Hexagon bolts with split pin hole on shank-fine pitch thread
GB/T 86-1988
Square set screws with short dog point and cone end
GB/T 821-1988
Square set screws with chamfered end
GB/T 85-1988
Square set screws with long dog point
GB/T 32.2-1988
Hexagon head bolts with reduced shank
GB/T 83-1988
Square set screws with long dog point and rounded end
GB/T 74-1985
Slotted set screws with cup point
GB/T 32.3-1988
Hexagon bolts with wire holes on head-fine pitch thread
GB/T 75-1985
Slotted set screws with dog point
GB/T 71-1985
Slotted set screws with cone point
GB/T 72-1988
Slotted set screws with cone point
GB/T 27-1988
Hexagon fit bolts with dog point
GB/T 28-1988
Hexagon head fit bolts with split pin hole on shank
GB/T 5790-1986
Large hexagon head flange bolts with reduces shank—Type A
GB/T 5790-1986
Large hexagon head flange bolts with reduces shank—Type B
GB/T 8-1988
Square head bolts
GB/T 12-1988
Cup head square neck bolts
GB/T 10-1988
Flat countersunk head square neck bolts
GB/T 11-1988
Flat countersunk nib bolts
GB/T 37-1988
Bolts for T-Slot