Round head
Flat round head
Cheese
T-head
Cup head square neck
Cup head nib
Cup oval neck
Low cheese head
GB/T 3632-2008
Sets of torshear type high strength bolt hexagon nuts and plain washer for steel structures
ASME/ANSI B18.2.6-2006
Twist-off type tension control structural bolts with round head
EN 14399-10-2009
Sets of torshear type high strength bolt hexagon nuts and plain washer for steel structures
EN 14399-10-2018
Sets of torshear type high strength bolt hexagon nuts and plain washer for steel structures
GB/T 32076.8-2017
Sets of torshear type high strength bolt hexagon nuts and plain washer for steel structures