Generally speaking, bolts are used to connect two objects, usually through a smooth hole, which needs to be used in conjunction with nuts, and a single one has no connection function. The tool is usually a wrench. The head is mostly hexagonal and generally larger. The carriage bolt is applied in the groove, and the square neck is stuck in the groove during installation to prevent the bolt from rotating, and the carriage bolt can move in parallel in the groove. Because the head of the carriage bolt is round, there is no design of available power tools such as cross groove or hexagon socket, and it can also play an anti-theft role in the actual connection process.

Materials: carbon steel, Q235, 45# steel, stainless steel.

Nominal diameter: 5 mm -20 mm

Length:15mm-300mm

Surface treatment methods: zinc plating, chromium plating, copper plating and surface blackening.