Carriage bolts

Carriage bolts are divided into large semi-circular head carriage bolts and small semi-circular carriage bolts according to the size of the head. Carriage bolts, a type of fastener consisting of two parts, a head and a screw, need to be matched with a nut to fasten and connect two parts with through holes.

The carriage bolt is applied to the groove, and the square neck is stuck 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. Due to the rounded head of the carriage bolts, there is no design of usable booster tools such as cross grooves or hexagnes, which can also play a role in the actual connection process.