Screw fasteners are widely used in all walks of life. Industries include machinery, equipment, vehicles, ships, railways, bridges, construction, structures, tools, instruments, chemicals, instruments, and supplies. Screws are characterized by a wide variety of items, different characteristics, and mature industrial chains, standards, series, and general level. Common types of screws include bolts, studs, screws, nuts, self-tapping screws, etc. Commonly used materials are stainless steel screws, 304 stainless steel screws, 316 stainless steel nuts, carbon steel, 8.8, 10.9, 12.9. I will introduce you to these categories below.
Studs: Both ends are threaded and have no head. Use the screw through the part with the through hole, and then screw the nut on both ends to make the two connected together as a whole. This connection is called stud connection, also called removable connection. Widely used for connecting parts with large thickness, small or often disassembled equipment. There are the following types of materials: stainless steel screws, high-strength bolts, and high-strength nuts.
Screw: It is composed of a head and a screw. It can be connected to a part with a through hole and does not require a nut. This is called a screw connection and mainly fixes the relative position between the two parts. The commonly used materials are: stainless steel screws, stainless steel nuts, stainless steel gaskets, high-strength bolts, and high-strength nuts.
Nuts: With holes and threaded walls. A flat or flat cylindrical shape with bolts, studs or machine screws for fastening two parts into one.
Self-tapping screws: As with other screws, the two parts are fixed in one piece. This screw has a high hardness and can be screwed into a hole. Used on woodworking.
Gasket: The shape is oblate. For bolts, screws or nuts between the supporting surface and the connection parts appearance.