DIN985/Locking and anti-loosening nut
diameter:Â Â Â Â 2Â 2.5Â 3Â 4Â 5Â 6Â 8Â 10Â 12Â 14Â 16Â 18Â 20Â 22Â 24Â 27Â 30Â 33Â 36
material:  304   316   carbon steel    copper and so on
thread form:  Coarse thread      Fine thread    and so on
surface finishing:  natural     coating    black    galvanizing    Dacromet coating  and so on
DIN985 nuts can be classified by material as follows:
– Steel: It includes low-carbon steel, such as ASTM A563 Gr.A and C; medium-carbon steel, such as ASTM A194 Gr.2H, 2HM, 7, and 7M; and alloy steel, such as ASTM A194 Gr.8, 8M, 8C, and 8T.
– Stainless Steel: There are austenitic stainless steels, such as ASTM F594 Gr.A, B, C, etc.; and austenitic stainless steels with better corrosion resistance, such as ASTM F738M Gr.A1, A2, A4, etc.
– Non-ferrous Metals: For example, brass, the common one is ASTM B16 Gr.C36000; and bronze, such as ASTM B98 Gr.C95500.
– Nylon: It mainly includes polyamide 6 (PA6) and polyamide 66 (PA66). Polyamide 11 (PA11) and polyamide 12 (PA12) can also be used.https://pangjinfasteners.com/about-us.html
The common surface treatments of DIN985 nuts are as follows:
– Zinc Plating: It includes electro-galvanizing and hot-dip galvanizing. Electro-galvanizing has a relatively low cost and can provide certain anti-corrosion ability, such as blue-white zinc plating and colored zinc plating treatments. The zinc layer of hot-dip galvanizing is thicker, and it has better anti-corrosion performance, which is suitable for harsh environments like outdoors.
– Zinc-Nickel Alloy Plating: It has better corrosion resistance than ordinary zinc plating, especially showing excellent performance in a salt spray environment. Meanwhile, it also has good high-temperature resistance.
– Black Oxidation: A black oxide film can be formed on the surface of the nut, which can play a certain role in preventing rust and also has a certain decorative effect.
– Dacromet Treatment: The formed coating has advantages such as good corrosion resistance, weather resistance, and no hydrogen embrittlement, and is suitable for occasions with high anti-corrosion requirements and that need to withstand certain vibrations.
– Natural Finish Treatment: For DIN985 nuts made of stainless steel, the natural finish treatment is often adopted. The corrosion resistance of the stainless steel itself is utilized, and its metallic original color is maintained.
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.
