DIN928/Square welding nut
The information of DIN 928 is as follows.
diameter: 4 5 6 8 10
material: 304 carbon steel copper
thread form: Coarse thread
surface finishing: natural coating black galvanizing Dacromet coating and so on
The information of DIN928 is as follows.
The common property classes of DIN 928 bolts include grade 4.8, grade 5.6, grade 8.8, grade 10.9, and grade 12.9, etc.https://pangjinfasteners.com/about-us.html
– Grade 4.8: The yield strength is approximately 320MPa, and the tensile strength is not less than 400MPa. It is suitable for general mechanical connection applications.
– Grade 5.6: The yield strength is approximately 300MPa, and the tensile strength is not less than 500MPa. It can be used for general connections with slightly higher strength requirements than grade 4.8.
– Grade 8.8: It belongs to medium-high strength bolts. The yield strength is approximately 640MPa, and the tensile strength is not less than 800MPa. It is often used in parts of automobiles, mechanical equipment, etc., where higher connection strength is required.
– Grade 10.9: The yield strength is approximately 900MPa, and the tensile strength is not less than 1000MPa. It is suitable for high-strength connection scenarios, such as bridges, large building structures, etc.
– Grade 12.9: It is a relatively high-grade among high-strength bolts. The yield strength is approximately 1080MPa, and the tensile strength is not less than 1200MPa. It is mainly used for critical parts with extremely high requirements for strength and reliability.
DIN928 countersunk head bolts with a tongue can usually be classified into the following categories according to their materials:
– Carbon Steel: DIN928 bolts made of common carbon steel have certain strength and toughness, and the cost is relatively low. They are suitable for general mechanical connections, building structures and other scenarios. Carbon steel materials such as Q235 and Q345 are relatively common.
– Alloy Steel: By adding alloying elements such as chromium, molybdenum, and vanadium, the bolts made of alloy steel improve their performance in terms of strength, hardness, wear resistance, and corrosion resistance. They are suitable for occasions with high requirements for bolt performance. Alloy steels such as 35CrMo and 42CrMo are often used to manufacture high-strength DIN928 bolts.
– Stainless Steel: DIN928 bolts made of stainless steel have good corrosion resistance and can be used in corrosive environments such as humid conditions, acids and alkalis. Common stainless steel materials include 304 and 316. 304 stainless steel is suitable for general corrosion-resistant environments, and 316 stainless steel has stronger corrosion resistance and is suitable for more severe corrosive environments.
– Non-ferrous Metals: Such as aluminum alloys, copper alloys, etc. Aluminum alloy bolts are light in weight and have certain corrosion resistance, and are often used in fields with weight requirements such as aerospace and automobiles. Copper alloy bolts have good electrical conductivity and corrosion resistance and are suitable for related fields such as electrical equipment.
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.
独立选项卡2的自定义内容
独立选项卡2的自定义内容
