Bolts are typically used in conjunction with nuts (often with one or two washers) and play a vital role in situations where they are required for connecting and tightening. Bolts come in a variety of types, including hex bolts, double-ended bolts, etc., and they are key components in mechanical assembly.
Nuts are used in combination with bolts and are available in various shapes and sizes, such as hex nuts, weld nuts, etc. They are essential components for achieving fastener connections, ensuring the solidity and reliability of the connections.
Screws are generally used alone (sometimes with washers) and are primarily used for tightening or securing parts. They can be wood screws, machine screws, or self-tapping screws, chosen based on the material and application scenario.
Studs are long rods with threads on both ends, typically with one end fixed inside a component and the other end mated with a nut for connecting and tightening. Studs are widely used in automobiles, construction, and heavy machinery.
Washers are placed between the supporting surface of bolts, screws, nuts, etc., and the surface of the part being supported to prevent loosening, reduce stress concentration on the supporting surface, and protect the surface of the parts.
Self-tapping screws can form internal threads when screwed into a workpiece without the need for pre-tapping. These screws are suitable for connecting thin metal sheets and wood.
Rivets have a head at one end and an unthreaded shaft. When in use, the shaft is inserted into the hole of the connected part, and the end of the shaft is riveted to connect or tighten.
Pins are inserted into the workpiece when in use, typically for connection or positioning. They play a key role in the assembly of mechanical and structural components, ensuring correct alignment and fixation of parts.
Retaining rings are used on shafts or in holes to limit the axial movement of the workpiece, maintaining the stability of the assembly. They are widely used in automobiles, aviation, and electronic devices.
Wood screws are specifically designed for screwing into wood for connecting or tightening wooden parts. They typically have a special thread shape to improve their holding power in wood.