What is a standard part? (under)

Today, I will continue to introduce you to the remaining types of standard parts.

5. Self-tapping screws: similar to machine screws, but the threads on the screws are special threads for self-tapping screws. It is used to fix two thin metal components so that they become a whole. Members need to make holes in advance. Due to the high hardness of the screw, it can be directly screwed into the hole of the component to form a corresponding screw inside the component. This connection is also movable.

6. Wood screws: also similar to machine screws, but the thread on the screw is a special wood screw screwed together, which can be screwed directly into the wood component (or part) to use metal (or non-metal) The parts are tied to the wooden structure with through holes. This connection is also a detachable connection.

7. Washer: a fastener with a loop. Bolts, screws or creep free surfaces and regeneration connections between supporting surfaces, it can increase the contact surface area of ​​the connection part, reduce the pressure per unit area and protect the surface elements of the connection from damage: another elastic washer can also prevent the nut from loosening.

8. Retaining ring: It is installed in the shaft groove or hole groove of the machine and equipment to prevent the parts on the shaft or hole from moving left and right.

9. Pin: Mainly used for positioning of parts, but also for connecting parts, fixing parts, power transmission or locking other fasteners.

10. Rivet: A fastener composed of two parts, a head and a nail shaft, used to fasten two parts (or components) connected to a through hole together. This connection is called riveting, or riveting for short. The utility model belongs to a non-detachable connection. The rivet must be broken to separate the two parts connected together.

11. Assembling parts and coupling pairs: Assembling parts refer to a type of fasteners provided in combination, such as machine screws (or screws) and ordinary washers (or spring washers, lock washers) used together; the connection pair is Refers to a type of fasteners composed of special bolts, nuts and washers, such as high-strength hexagonal head bolt connections for steel structures.

12. Welding nail: It is composed of a nail shaft and a nail head (or no nail head). A special-shaped fastener fixedly connected by welding is on the top of the component (or assembly) for reconnection with other components.

Qingdao Haorui Steel Products Co., Ltd. mainly produces and operates various specifications of Qingdao standard fasteners, Qingdao non-standard fasteners, as well as cold-drawn wire processing and sales business, and supports customized non-standard parts. If you are interested in our products, welcome to inquire.