The type of fastener is a type of fastener that is oblate. Between the support surface of the bolt, the screw or the nut and the surface of the connecting part, it increases the contact surface area of the connected part, reduces the pressure per unit area and protects the surface of the connected part from damage; another type of elastic washer, It also acts to prevent the nut from loosening.
The retaining ring is mounted in the shaft groove or slot of the machine or equipment and acts to prevent the parts on the shaft or the hole from moving left and right.
Pins are mainly used for part positioning, and some are also used for part joining, fixing parts, transmitting power or locking other fasteners.
A type of fastener consisting of a head and a shank for fastening the two parts (or members) with through holes to make them integral. This type of connection is called a rivet connection, referred to as riveting. It is connected to the non-detachable. Because the two parts that are joined together are to be separated, the rivets on the part must be destroyed.
