GB93/spring washer
The information of GB93 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 39Â 42
material:Â Â 304Â Â Â 316Â 2205Â Â Â carbon steel
surface finishing:  natural     coating    black    galvanizing    Dacromet coating  and so on
The spring washers specified in GB93 can be mainly classified into the following categories:
– Carbon Steel: It has certain strength and toughness, with a relatively low cost, and is widely used. For example, spring washers made of materials such as Q235 and 45 steel are suitable for general machinery, construction and other fields.
– Alloy Steel: By adding alloying elements such as chromium, manganese and silicon, the strength, toughness, wear resistance and corrosion resistance of the spring washers can be improved. For example, spring washers made of 65Mn steel are often used in occasions with high requirements for strength and elasticity.https://pangjinfasteners.com/about-us.html
– Stainless Steel: It has good corrosion resistance and oxidation resistance, and is suitable for harsh environments such as humid conditions or the presence of corrosive gases. For example, spring washers made of 304 and 316 stainless steel are widely used in fields such as food machinery, medical devices, and chemical equipment.
– Non-ferrous Metals: Such as copper alloys, they have good electrical conductivity, thermal conductivity and corrosion resistance, and are often used in electrical equipment and other occasions where there are requirements for electrical conductivity or need to work in specific corrosive environments.
Differentiate according to the surface treatment for the spring washer specified in GB93.
The common surface treatments for the spring washer of GB93 standard type are as follows, and it can be differentiated accordingly:
1. Black Oxidation: A black oxide film is formed on the surface of the spring washer, which can prevent rust to a certain extent. It appears black and is often used for mechanical connections in general environments, such as in the internal parts that are not easily exposed of common mechanical equipment, automotive components, etc.
2. Galvanizing: It includes electro-galvanizing and hot-dip galvanizing. The surface of electro-galvanizing is smooth and silvery white, which can effectively prevent the washer from rusting and is suitable for products in general indoor environments. The zinc layer of hot-dip galvanizing is thicker, with stronger corrosion resistance. Its surface color is slightly darker than that of electro-galvanizing, showing gray, and it is often used in outdoor equipment, building hardware, and other occasions with high requirements for corrosion resistance.
3. Whitening: Generally, it is for the GB93 spring washers made of stainless steel. Impurities and oxide scale on the surface are removed through chemical treatment and other methods, making the surface present a bright silvery white, which is clean and beautiful in appearance. Besides, stainless steel itself has good corrosion resistance, so it is suitable for environments with high requirements for hygiene conditions, aesthetics, and corrosion resistance, such as food machinery, medical devices, etc.
The above are the common ways to differentiate the spring washer of GB93 standard type according to surface treatment. In practical applications, there may be other special surface treatment methods.
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.
