DIN125
The information of DIN125 is as follows.
diameter:Â Â Â 1.6Â 2Â 2.5Â 3Â 4Â 5Â 6Â 8Â 10Â 12Â 14Â 16Â 18Â 20Â 22Â 24Â 27Â 30Â 33Â 36 39
material:  304   316  2205 321    carbon steel    copper
thread form:  Coarse thread      Fine thread    and so on
surface finishing:  natural     coating    black    galvanizing    Dacromet coating  and so on
The performance differences of DIN 125 flat washers made of different materials are as follows:
– Carbon Steel Flat Washers: They have high strength and hardness and can withstand large fastening forces. For example, materials like 45 steel and 65Mn steel can reach a hardness of over 200HV after heat treatment. However, their corrosion resistance is poor, and they are prone to rusting in humid environments or those with corrosive media. Generally, surface treatments such as galvanizing or blackening are required to improve their corrosion resistance. Moreover, they have a relatively low cost and good economic efficiency, making them suitable for general industrial applications and places with low requirements for corrosion resistance.
– Stainless Steel Flat Washers: They possess excellent corrosion resistance and can be used for a long time without rusting in harsh conditions such as humid environments, acid-base environments, or marine climates, such as 304 (A2) and 316 (A4) stainless steel. They also have good high-temperature resistance and can maintain stable mechanical properties at relatively high temperatures. In addition, the hardness of stainless steel flat washers is generally around 200HV, with good strength and wear resistance. However, their cost is higher than that of carbon steel flat washers.
– Brass Flat Washers: They have good electrical conductivity and are suitable for electrical connection scenarios, ensuring the smooth transmission of electric current. Their corrosion resistance is also relatively good, especially in resisting atmospheric corrosion. Moreover, they have an attractive golden appearance and can be used for some decorative connection parts with requirements for appearance. However, the strength of brass flat washers is relatively low, not as good as that of carbon steel and stainless steel flat washers, and they cannot withstand too large fastening forces and impact forces.
The information of DIN125  is as follows.
DIN125flat washers have a wide range of application scenarios, as follows:
– Mechanical Manufacturing Field: In the assembly of various mechanical equipment, such as motors, speed reducers, etc., they are used to reduce the pressure on the surface of the equipment casing or components during bolt connection, prevent surface crushing and scratching, and protect the surface quality of the parts.https://pangjinfasteners.com/about-us.html
– Automotive Industry: They can be applied to the bolt connections of parts such as automotive engines and chassis. For example, in the bolt fixation of the engine cylinder block, they can evenly distribute the pressure, prevent damage to the surface of the cylinder block, and help enhance the reliability of the connection, reducing the loosening of bolts caused by vibration.
– Construction Industry: In steel structure buildings, they are used at the connection parts of steel beams, steel columns and other components. By using flat washers, the fastening force of bolts can be more evenly transmitted to the surface of the components, improving the stability and durability of the connection, and effectively preventing the deformation of the steel surface due to excessive local stress.
– Electrical Equipment Installation: During the installation of electrical equipment such as transformers and distribution cabinets, they are used for the bolt connection of electrical components and the cabinet body. They can not only protect the surfaces of electrical components and the cabinet body, but also play a role in insulation and corrosion prevention to a certain extent, ensuring the safe and reliable operation of electrical equipment.
– Furniture Manufacturing: In the assembly of furniture such as tables, chairs, and cabinets, when bolts are used to connect components such as wooden boards, flat washers can prevent the surface of the wooden boards from being damaged by the bolt heads or nuts. At the same time, they make the connection tighter and firmer, improving the service life and stability of the furniture.
1. About package
1.1 In our daily production operations, we always maintain a rigorous and scientific attitude towards the product packaging process. When it comes to selecting materials for the inner packaging of products, we typically use plastic films, plastic bags, or plastic trays. Thanks to their excellent sealing properties and corrosion resistance, these materials can effectively protect products and perform the functions of moisture prevention and rust prevention remarkably well. Especially for those fastener products with high manufacturing precision or those that are relatively fragile and vulnerable, we will additionally use cushioning materials with excellent shock absorption performance, such as foam plastics and sponges, to further enhance the protection. In this way, we can avoid product damage caused by various collisions and jolts during transportation, ensuring the integrity and quality of products to the greatest extent. Regarding the outer packaging, we usually choose corrugated cardboard boxes, wooden cases, or plywood cases. Corrugated cardboard boxes are lightweight and cost-effective, making them suitable for fasteners with relatively light weights. Wooden cases and plywood cases have high strength, which not only allows them to bear heavier loads but also enables them to meet the fumigation requirements for export packaging, making them ideal for heavy-duty or vulnerable fasteners.
1.2 In addition, we attach great importance to the personalized needs of each customer and are committed to providing customized packaging services. If customers have unique design requirements for the color, pattern, and size of the packaging, or if they expect to print exclusive brand logos on the packaging to enhance their brand image, we will go all out, mobilize various resources of the company, and make every effort to meet each special requirement of the customers. We strive to create unique packaging solutions for customers that are in line with their brand concepts and market positioning.
2.About payment
Our company uniformly adopts T/T (Telegraphic Transfer) as the payment method. For regular orders, a 30% advance payment is required at the time of placing the order to initiate the order process. The remaining 70% balance must be fully settled before the goods are loaded onto the vehicle to ensure a seamless connection between the payment transfer and the goods transportation process.
In the case of customized products, considering the particularity of their production, the advance payment proportion is adjusted to 30% - 50%, which needs to be paid upon finalizing the customized details and signing the contract. The remaining balance is also required to be paid off before the goods are loaded. Only when the balance is cleared can the goods be guaranteed to be delivered to your designated location on time and smoothly, avoiding any possible delays or disputes.
3.About Delivery & shipment
For in-stock products, with the support of our efficient logistics distribution system and internal coordination mechanism, we promise to complete the delivery within 10 days, enabling you to obtain the desired goods promptly. As for customized products, since they need to be produced according to specific specifications and requirements, involving multiple processes such as design confirmation, raw material procurement, and production, we will generally complete the delivery within one month, ensuring that you can receive the customized products that meet your needs as scheduled.
