1. Product Information 1. Customization available: Yes 2. Models: M3, M4, M5, M6, M8, M10 3. Customizable materials: Metal processing 4. Place of origin: Mainland China 5. Certification: None 6. Product names: Countersunk washer gaskets; Tapered washers 7. Materials: 304 stainless steel / SCM435 steel 8. Type: Washers 9. Dimensions: M3 - M10 (304 stainless steel for flat or tapered specifications; SCM435 steel for steel specifications) 10. Packaging: Plastic bags + cartons 2. Notes The following data are manually measured for a single batch, and there may be errors. Please refer to them with caution. 3. Frequently Asked Questions 1. We are a factory, and we welcome wholesalers and retailers. For wholesale business, we may provide discounts or free express delivery services, and the goods will be delivered in a short time. If you are a retailer and want to start your own business, we can directly send the goods to your customers, and if you wish, we will not leave any information about us. 2. What should I do if I don't receive the goods? Please contact us first, and we will track your goods. If you still can't receive the goods in the end, we may offer a full refund or reship the goods. We are an honest seller, so please rest assured. 3. What if there is a problem with the product? Please contact us in time, and we will help you solve the problem. 4. Shipping Instructions We will try to ship the goods within 24 hours after you place an order. The shipping time may be extended during holidays. 5. Logistics Options Packages sent via the economy shipping channel may be seriously delayed or easily lost. It is advisable to choose the following shipping channels. 6. After - sales Service If there is a quality problem with the product, we will provide you with a refund service as soon as possible. Please rest assured to make a purchase. If you have any questions about the product, please contact us in time. Providing customers with good service is our service tenet. If you are satisfied with our products and services, please give us a five - star feedback, which will give us more motivation. We sincerely hope that every customer can have a pleasant shopping experience with us.