brief introduction: The cable fastener is mainly used for cable rolling belt installation, the cable fastening parts usually include the following 12 types of parts: Bolts: a kind of fastener composed of the head and the screw (cylinder with external thread), which needs to be matched with the nut, used for fastening and connecting two parts with through holes; Stud: a type of fastener without a head and with only external threads at each end; Screw: is also composed of head and screw two parts of a class of fasten