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Carriage bolt

The carriage bolts are divided into large half round head carriage bolts (corresponding to standard GB/T14 and DIN603) and small half round head carriage bolts (corresponding to standard GB/T12-85). The carriage bolt is a kind of fastener consisting of head and screw (cylindrical body with external threads). It needs to cooperate with nuts to fasten and connect two parts with through holes.


The carriage bolt is applied to the groove, and the square neck is caught in the groove during the installation process, which can prevent the bolt from rotating, and the carriage bolt can move in parallel in the groove. Since the head of the carriage bolt is round, there is no design of the available power tools such as a cross recess or a hexagon socket, and it can also function as an anti-theft during the actual connection process.