Carriage bolts are divided into semi round head carriage bolts (corresponding to standards GB/T14 and DIN603) and semi round head carriage bolts (corresponding to standards GB/T12-85) according to their head size. Carriage bolts are a type of fastener consisting of a head and a screw (cylindrical body with external threads), which need to be matched with a nut to securely connect two parts with through holes.
Generally speaking, bolts are used to connect two objects, usually through light holes, and need to be used in conjunction with nuts. They do not function as a single connection. Tools usually use wrenches. The head is mostly hexagonal and generally larger. The carriage bolt is applied in the groove, and the square neck is clamped in the groove during installation, which can prevent the bolt from rotating. The carriage bolt can move parallel in the groove. Due to the circular head of the carriage bolt, there is no design for available power tools such as cross grooves or inner hexagon, which can also play a role in anti-theft during the actual connection process.
Material: Carbon steel Q235、 45 # steel, stainless steel
Nominal diameter: 5mm -20mm
Length: 15mm-300mm
Surface treatment methods: galvanizing, chrome plating, copper plating, surface blackening
Shanghai Yaluo Precision Fastener Technology Co., Ltd. has been producing and supplying austenitic stainless steel fasteners for a long time A2-70、A2-80、A3-70、A4-70、A4-80、A5-80、A193 B8、SUS304、SUS316、SUS316Ti、SUS310、SUS314、SUS317、SUS321、SUS347 wait
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