fasteners

Two or more than two parts fastening connection to be a whole USES a kind of mechanical parts of the body, on the market, also known as standard.By the head and screw two constitute a kind of fasteners, according to use can be divided into three categories - machine screw, set screw and special purpose screw. The machine is mainly used for screw with internal thread hole parts and with a hole between parts fastening,

nut

With internal thread hole, the general shape of the flat six Angle type, also have a flat square shape or flat cylindrical, with bolt, screw or machine screw, used for fastening two parts, make it become a

Self tapping screw

And machine screw similar, but the screw thread for special self tapping screw with thread. Used for fastening two thin metal components, make into for a whole, member to make holes in advance, because this kind of screw has high hardness, can be directly screwing in member's hole, the hole component form corresponding internal thread. This kind of connection form are detachable connection.

Wood screw

And machine screw similar, but the screw thread for special wood screw with thread, can be directly screwing in wood component, used to put a bandpass hole metal parts with a solid wood components together. This kind of connection form are detachable connection.