

Marine-Grade Corrosion Fighters
Designed specifically for marine applications, M16 316 stainless steel external tooth lock washers excel in harsh saltwater environments. With 2-3% molybdenum content, they form a protective barrier against chloride ions, passing 1000-hour salt spray tests and outperforming 304 stainless steel.
Precision Anti-Loosening Design
Compliant with DIN 6798 and GB/T 862.2 standards, these M16 washers (17mm inner diameter, 30mm outer diameter, 2mm thickness) feature 12 external teeth. When tightened, the teeth bite into surfaces, reducing loosening risk by 70% in high-vibration marine environments.
Essential for Marine Equipment
Ideal for ship deck fasteners, seawater piping systems, and offshore connectors, they withstand temperatures from -50℃ to 200℃. The 316 stainless steel construction resists crevice corrosion and maintains toughness in cold conditions, preventing brittle fractures.
Premium 316 External Tooth Solution
External teeth provide 50% greater locking force compared to flat washers. 316 steel offers 2-3 times better saltwater resistance than 304 grade, with an 8-10 year service life. While costing 30% more, it reduces lifecycle maintenance expenses by 60%.

| em | value |
| Finish | Black, ZINC |
| Style | External Tooth |
| Material | Stainless Steel, Steel |
| Application | General Industry, Automotive Industry |
| Place of Origin | China |
| Product name | Serrated washer |
| Surface treatment | ZincPlated |
| MOQ | 10000 |
| Packing | Customers Requirements |
| Delivery time | 5-15 Days |
| Service | direct deal |
| Payment Term | T/T |
| PORT | Tianjin Port |





| Hardware Factory Workshop |
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| With years of hardware manufacturing expertise, we employ high-precision advanced equipment and cutting-edge technologies, collaborating with multiple renowned brands. Supported by a skilled design team, professional technical capabilities, and rigorous quality control systems, we guarantee superior fastener quality and reliable performance, delivering premium products to our customers. |








FAQ
Q1:How many coutries you already exported ?
A1:Exported to more than 50 countries mainly from America, Russia, UK, Kuwait, Egypt, Turkey,Jordan,etc.
Q2:How can l get some samples?
A2:Small samples in store and can provide the samples for free. Catalgue is available, most patternswe have ready samples in stock.Customized samples will take about 5-7days.
Q3:What is the delivery ?
A3:Sample order's delivery time is 5-7 days. Container orders are about 15-20 days







