Enterprise Name: CHENGDA MODEL SET
Contact person: Business Department
Mobile phone: 198-5734-5006
Address: 39 Success Road, Jiashan Economic Development Zone, Zhejiang Province
Websit : en.chengda-mould.com
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). A carriage bolt is a fastener consisting of a head and a screw (a cylinder with external threads). It needs to be matched with a nut to fasten and connect two parts with through holes.
Carriage screw refers to round head square neck screw, English for carriage bolt
Generally speaking, a screw is used to connect two objects, usually through a light hole. It needs to be used in conjunction with a nut. A single screw does not play a connecting role. Tools are usually wrenched. The head is mostly hexagonal head, generally larger. The carriage bolt is applied in the groove, and the square neck is stuck in the groove during the installation process, which can prevent the bolt from turning, and the carriage bolt can move parallel in the groove. Because the head of the carriage bolt is round, there is no design of the cross groove or the inner hexagon, which can also play an anti-theft role in the actual connection process.
Material: Carbon steel, Q235, 45# steel, stainless steel
Nominal diameter: 5mm-20mm
Length: 15mm - 300mm
Surface treatment: galvanizing, chromium plating, copper plating, surface blackening
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