M8 Black Split Lock Washer, 18-8 (304) Stainless Steel Black Coating Spring Lock Washer Elastic Gasket
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Product Highlights
- Premium 304 Stainless Steel: Made from high-strength 304 stainless steel for superior corrosion and rust resistance.
- Anti-Loosening Function: Prevents nuts and bolts from rotating loose due to vibration and friction.
- Wide Size Compatibility: Available in 9 sizes (M2-M12) to fit screws, nuts, and bolts of the same size.
- Versatile Applications: Ideal for furniture DIY, building construction, outdoor projects, and electrical maintenance.
- Customization Available: Supports customization based on drawing sheets, samples, material, and surface treatment.
- Free Sample Provision: Samples are provided free of charge, excluding courier fees.
- Professional Manufacturer: Established in 2000 with 300+ employees and advanced production lines.
- Fast Delivery Options: 10-15 days for in-stock items; over 30 days for customized or out-of-stock orders.
Product Attributes
- Customization
- Available
- Type
- Spring Washer
- Material
- Stainless Steel
- Model NO.
- Stainless Steel Black Coating Spring Lock Washer
- Combination Washer Structure
- A Type
- Combination Washer Packaging
- Half a Pack
- Spring Washer Type
- Light Weight
- Model No.
- DIN, ANSI, GB
- Surface Treatment
- Hot Galvanized, Black, Color-Zinc, Blue White Zinc
- Class/Grade
- 3.6, 4.8, 5.6, 6.8, 8.8, 9.8, 10.9, 12.9
- Sample
- in Stock
- Certification
- ISO9001
- Used
- Machinery, Chemical Industry, Environ Mental
- Shipment
- EXW, Fob, CIF
- Shape
- with Round Holes
- Application
- for Wood Constructions
- Transport Package
- Carton Box
- Specification
- M4-M90
- Trademark
- hongniu
- Origin
- Yangzhou, China
- Production Capacity
- 5000000pieces
- Package Size
- 10.00cm * 5.00cm * 5.00cm
- Package Gross Weight
- 0.500kg
Shipping
- Shipping Cost:
- Contact the supplier about freight and estimated delivery time.
Online Trading Protection
- Payment Guarantee
-
Platform-protected payments with refund support for eligible order issues.
- Platform Logistics
- Clearer shipment tracking with platform-supported logistics.
- Inspection Service
- Optional pre-shipment inspection for quality and quantity checks.
- After-Sales & Dispute Handling
- Platform-assisted dispute resolution, including refunds or returns when applicable.
Only orders placed and paid through Made-in-China.com Secured Trading are eligible for payment protection and the corresponding platform services.
Product Images of M8 Black Split Lock Washer, 18-8 (304) Stainless Steel Black Coating Spring Lock Washer Elastic Gasket
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Product Description
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 | M8 |
|---|---|
| Material | Stainless Steel |
| Color | Black |
| Production location | China |




About us
yangzhou 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.


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.
About the Supplier
This supplier has been audited by SGS. Verify the report on the official SGS website with ID "QIP-ASI2441106". Items marked "" are certified.
Company Profile
Yangzhou Hongniu Import and Export Co., Ltd. is an integrated enterprise specializing in both industry and trade. With over 20 years of experience in the industry, the factory ranks among the top ten in China for standard parts and non-standard hardware processing. The company's main business includes automotive parts, standard parts, non-standard parts, hydraulic components, pressure pipeline elements, mechanical production, sales, and metal heat treatment. It primarily serves industries such as auto parts, metallurgy, shipbuilding, heavy industry, agricultural machinery, and furniture. The factory provides integrated services for research and development, design, production, inspection, and after-sales service. It is equipped with various processing equipment, machining centers, heat treatment equipment, cold heading machines, gear hobbing machines, and other equipment. For over 20 years, the factory has adhered to the principle of putting product quality and service first. It holds certifications such as IATF16949, GB/T24001-2016, ISO14001-2015, GB/TS45001-2020, among others.
About Our Factory & Business Background
- Address
- Yangzhou, Jiangsu, China
-
Terms of Payment
- LC, T/T, PayPal, D/P, Western Union, Small-amount payment
-
International Commercial Terms(Incoterms)
- FOB, CIF, CFR, EXW
-
Average Lead Time
-
Peak Season Lead Time: one month
Off Season Lead Time: within 15 workdays -
Nearest Port
- Shanghai Port
-
Minimum Order Quantity
- 1 Piece
-
Supply Chain Partners
- 30
Our Production Capability & Technical Expertise
- Main Products
- Bolts & Nuts, Screws, Rivets, Parallel Keys & Pins, Washers/Gaskets, Auto Parts, CNC Products, Non Standard Products, Anchors, Fasteners
-
Production Lines
- 16
-
Production Machines
- Parts Washer, Acid Pickling and Parkerising Line, Gear Rolling Machine, Gear Rolling Machine, Automatic Sawing Machine, Sawing Machine, Drawing Machine, Heat Treatment Line, Pit Furnace, Automatic Drawing Machine, Screwing Machine, Grinding Machine, CNC Lathe, Drilling Machine, Milling Machine, Punching Machine, Shot Blasting Machine, Mechanical Arm, CNC Center, Automatic Packing Line
-
QA/QC inspectors
- 5 people
-
Inspection Type for Finished Products
- Random inspection(Visual inspection & Function inspection)
-
Inspection Method for Finished Products
- Have instructions and uniformly followed
-
Customization Options
- Customization from Samples, Customization from Designs
-
ODM Service Available
- Yes
-
OEM Service Available
- Yes
-
R&D Engineers
- 1 people
-
Traceability of Raw Materials
- No
Our Industry Experience & Global Business Record
-
Export Year
- 0.5 year
-
Main Markets
- North America, Domestic
-
Number of Foreign Trading Staff
- 3
-
Overseas Agent/Branch
- No
-
New Products Launched in Last year
- No
FAQ
- What are your main products?
- Our main sale products include 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.
- How long is your delivery time?
- 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.
- What is your payment method?
- 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.
- Can you provide a sample?
- Sure, Our sample is provided free of charge, but not including courier fees.
- Can you customize the product according to the requirements of drawing sheets and so on?
- 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.
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