Spring lock washers Metric spring lock washers come in 9 sizes, namely m2, m2.5, m3, m4, m5, m6, m8, m10, m12, 9 different sizes of lock washers, from furniture DIY to building construction, help you easily complete the work!
304 stainless steel 304 stainless steel open lock washers are made of high-strength materials with good corrosion resistance and long service life. Compared with galvanized materials, they have stronger anti-oxidation, corrosion resistance and rust resistance, thereby extending the service life of the product.
Function of open lock washers: Open lock washers are mainly used to prevent nuts, bolts and screws from rotating loose due to vibration and friction, and play a role in preventing looseness and fixing objects, ensuring the stability and safety of the machine.
Wide application: Spring washers are highly compatible with screws, nuts and bolts of the same size, and can be used to connect moving parts or prevent loose connections, such as furniture repair, outdoor construction and electrical maintenance.
Size |
M4 |
Material |
Stainless Steel |
Color |
Stainless Steel |
Production location |
China |




Main products

About us
Jiangsu Hongniu Automotive Parts Co., Ltd. was founded in June 2000. Located in Tangzhuang Town, the eastern suburbs of the historic and cultural city of Gaoyou, with convenient transportation. The company covers an area of 35000 square meters and currently has over 300 employees, including 70 high-level and intermediate professional and technical personnel. Registered capital of 20 million yuan, total assets of 78 million yuan, and fixed assets of 56 million yuan. Main products: Series standard parts (including national standard and non-standard parts); Various types of automotive parts, hydraulic components, castings, and wind power products; aerospace fasteners, etc. Widely used in industries such as aerospace, machinery, wind power, textiles, automotive manufacturing, petroleum, forging, etc. We have maintained good cooperative relationships with dozens of large and medium-sized enterprises in China, and are highly favored by our customers with our good reputation and excellent quality.
FAQ
Q1: What is your main products?
A1: Our main sale products: series standard parts (including national standard and non-standard parts); Various types of automotive parts, hydraulic components, castings, and wind power products; aerospace fasteners, etc.
Q2: How long is your delivery time?
A2: Generally it is 10-15 days if the goods are in stock. or it is over 30 days if the goods are not in stock, it is according to quantity.
Q3: What is your payment method?
A3: 30% value of T/T in advance and other 70% balance on B/L copy. For small order less than 5000USD, would suggest you pay 100% inadvance to reduce the bank charges.
Q4: Can you provide a sample?
A4: Sure, Our sample is provided free of charge, but not including courier fees.
Q5: Can you customize the product according to the requirements of drawing sheets and so on?
A5: Sure, we can customize the products according to your requirements of drawing sheets, samples and so on. Product information include: material, surface treatment, specification and amount.