Bolt standard - GB standard

Specification Standard - GB Standard

Square head bolts C grade GB 8-88
Countersunk head neck bolt GB 10-88
Countersunk head with bolts GB 11-88
Semicircular square head bolts GB 12-88
Round head with bolts GB 13-88
Large round head square neck bolt C grade GB 14-1998
Large round head with bolt GB 15-88
Hexagon head reaming hole bolt GB 27-88
Hexagonal head screw with hole Retaining hole bolt GB 28-88
Hex head with slotted bolts A and B GB 29.1-88
Cross slot hex head bolt GB 29.2-88
Hexagon head screw with hole GB 31.1-88
Hexagon head screw with hole bolt fine rod B GB 31.2-88
Hexagon head screw with hole bolt fine teeth A and B GB 31.3-88
Hex head with hole bolts A and B GB 32.1-88
Hex head with hole bolt fine rod B GB 32.2-88
Hex head with hole bolt fine teeth A and B grade GB 32.3-88
Below the head bolt B GB 35-88
T-slot bolts GB 37-88
Reinforced semicircular head square neck bolt GB/T794-93
Live bolt GB 798-88
Anchor bolt GB 799-88
Countersunk head double screw GB 800-88
Small round half head low side bolt Bolt GB/T 801-1998
Hexagon head bolt C grade GB/T 5780-2000
Hexagon head bolt full thread C grade GB/T 5781-2000
Hexagon head bolt GB/T 5782-2000
Hexagon head bolt full thread GB/T 5783-2000
Hex Head Bolt - Thin Rod - Class B GB 5784-86
Hexagon head bolt with fine teeth GB/T 5785-2000
Hexagon head bolt fine thread full thread GB/T 5786-2000
Hexagon flange bolts - Intensified series - Class B GB 5789-86
Hexagon flange bolts - Intensive series - Rods - Class B GB 5790-86
Hexagonal flange face bolt small series GB/T 16674-1996
High-strength bolts for bolted ball joints of steel grids GB / T 16939-1997