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DIN603 M8 Round Mushroom Head Square Neck Stainless Steel Carriage Bolt Coach Bolt

Carriage bolts are divided into large round head carriage bolts (corresponding to standards GB/T14 and DIN603) and small round head carriage bolts (corresponding to standard GB/T12-85) according to the size of the head. Carriage bolt, a type of fastener consisting of two parts, a head and a screw (cylinder with external threads), which need to be matched with a nut to fasten and connect two parts with through holes. Generally speaking, a bolt is used to connect two objects, usually through a light hole, and needs to be used in conjunction with a nut. A single bolt cannot connect. A wrench is generally used as a tool. The heads are mostly hexagonal heads, etc., generally larger. The carriage bolt is applied in the groove, and the square neck is stuck in the groove during installation, which can prevent the bolt from rotating, and the carriage bolt can move in parallel in the groove. Since the heads of the carriage bolts are round, there is no design of useful power tools such as cross grooves or hexagon sockets, and they can also play a role in preventing theft in the actual connection process. Carriage bolts are also called half-round head square neck bolts. The head is a half-round head and the bottom is a square neck.

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