Screw usage characteristics
The screw is a fastener widely used in various mechanical equipment and structures, and its main role is to connect and fix different parts. There are many kinds of screws, including but not limited to ordinary screws, self-tapping screws, wood screws, expansion screws, etc. Different kinds of screws are suitable for different occasions and materials, such as self-tapping screws are usually used for the connection of thin metal plates, and wood screws are more suitable for wood.
Screw rule parameters
The regular parameters of screws mainly include diameter, length, thread type and pitch. The diameter and length determine the thickness and range of the material that the screw can be fixed; The screw type and pitch affect the fastening effect and applicability of the screw. For example, metric threads usually start with M, followed by two digits indicating pitch, such as M4×10 indicating a screw with a diameter of 4 mm and a length of 10 mm.
High strength self tapping |
Parameter name |
Specification range |
Thread diameter |
M2.9-M6.3 |
Screw length |
6mm-100mm |
Surface treatment |
Zinc plating,nickel plating |
Material |
Low carbon steel, stainless steel |
Torque |
It varies according to the diameter |
Screw quality standard
Screw quality standards mainly involve its material, surface treatment, mechanical properties and inspection methods. The material is usually carbon steel, stainless steel, etc., and the surface treatment includes galvanized, dacromet, blackening, etc., to improve the corrosion resistance and beauty of the screw. In terms of mechanical properties, screws need to meet certain requirements such as tensile strength, torque and hardness. The inspection methods include visual inspection, dimensional measurement and mechanical property testing.
Screw packaging design
The packaging design of screws needs to consider many factors such as protecting products, facilitating transportation and use. Packaging materials are usually made of plastic or metal to ensure the safety and stability of the screws during transportation. In addition, the packaging will also be marked with screw specifications, models and instructions for use and other information, easy for users to identify and use.
Screw application scenario
The use of screws is very wide, from household appliances, furniture to construction engineering, automobile manufacturing and other fields have its figure. In home maintenance, the frequency of use of screws is very high, such as fixed bookshelves, wardrobes and other furniture; In industrial production, screws are used to connect complex mechanical structures and components.
To sum up, screws as a basic hardware accessories, its product characteristics, rule parameters, quality standards and use scenarios are very important. The correct selection and use of screws can not only ensure the stability of the product, but also improve the reliability of the overall structure. In terms of packaging design, we take into account the characteristics of the screw and transportation requirements to ensure that it reaches its destination safely.