Hongniu Fasteners DIN 436 Square Gasket High Strength Structural Flat Washer Manufacturer in China
Product Specifications
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Material
304
316
316L
2507
Q235
carbon steel
SPCC
Q235B
Grade
100HV
140HV
Finish
White Polished
Black Oxide
Blue White Zinc Plated
Yellow Zinc Plated
Hot Dip Galvanized (HDG)
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Product Details
| Customization: | Available |
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| Type: | Flat Gasket |
| Material: | ODM/OEM |
Shipping
| Shipping Cost: | Contact the supplier about freight and estimated delivery time. |
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Basic Info.
- Model NO.
- DIN 436
- Combination Washer Structure
- ODM/OEM
- Combination Washer Packaging
- ODM/OEM
- Spring Washer Type
- ODM/OEM
- Shipping Time
- Around 7-40 Days
- Freight
- Real-Time Quotation
- Thickness
- ODM/OEM
- Dia
- ODM/OEM
- Transport Package
- Carton Package
- Specification
- ODM/OEM
- Trademark
- ODM/OEM
- Origin
- China
Packaging & Delivery
- Package Size
- 35.00cm * 20.00cm * 20.00cm
- Package Gross Weight
- 23.000kg
Product Description
Choose us, choose quality. Your reliable partner in fastening solutions.
Support the production and customization of various fasteners.
In Chinese, "Hongniu" means strength and excellence.
Our products live up to our name — high-quality fasteners that take your products to the next level.
In Chinese, "Hongniu" means strength and excellence.
Our products live up to our name — high-quality fasteners that take your products to the next level.

Hongniu Fasteners
Business cooperation is based on honesty and trust.
We will do our utmost to be your reliable and long-term supplier, safeguarding the quality of your products.
Our relationship is not merely that of a buyer and a seller — we are partners who depend on each other to create both wealth and reputation.
We will do our utmost to be your reliable and long-term supplier, safeguarding the quality of your products.
Our relationship is not merely that of a buyer and a seller — we are partners who depend on each other to create both wealth and reputation.
Product Overview
DIN 436 Square Washer is a type of flat washer with a square shape, widely used in construction and steel structures. It distributes the load of threaded fasteners such as bolts and nuts, reducing surface pressure and preventing damage.
Hongniu Fasteners provides a full range of square washers in carbon steel, stainless steel, and alloy steel, with surface treatments including plain, zinc plated, hot dip galvanized, and black oxide.
Hongniu Fasteners provides a full range of square washers in carbon steel, stainless steel, and alloy steel, with surface treatments including plain, zinc plated, hot dip galvanized, and black oxide.
Standard | Size (mm) | Inner Diameter (d1) | Outer Dimension (d2) | Thickness (h) | Material | Surface Finish |
DIN 436 | M6 | 6.4 | 18 | 4 | Carbon Steel / Stainless Steel | Plain / Zinc Plated / HDG / Black |
DIN 436 | M8 | 8.4 | 24 | 4 | Carbon Steel / Stainless Steel | Plain / Zinc Plated / HDG / Black |
DIN 436 | M10 | 10.5 | 30 | 4 | Carbon Steel / Stainless Steel | Plain / Zinc Plated / HDG / Black |
DIN 436 | M12 | 13 | 37 | 5 | Carbon Steel / Stainless Steel | Plain / Zinc Plated / HDG / Black |
DIN 436 | M16 | 17 | 44 | 6 | Carbon Steel / Stainless Steel | Plain / Zinc Plated / HDG / Black |



Finish Advantages
Packaging & Delivery
Carbon Steel: cost-effective and durable
Stainless Steel (A2/A4): excellent corrosion resistance
Alloy Steel: high tensile strength and wear resistance
Stainless Steel (A2/A4): excellent corrosion resistance
Alloy Steel: high tensile strength and wear resistance
1. Packaging: Bulk in cartons, plastic bags, or customized boxes
Carton Size: 25kg / carton
2. Pallet: Standard export wooden pallet
3. Lead Time: 7–25 days depending on order quantity
4. Shipping: By sea, air, or express (DHL, FedEx, UPS)
Carton Size: 25kg / carton
2. Pallet: Standard export wooden pallet
3. Lead Time: 7–25 days depending on order quantity
4. Shipping: By sea, air, or express (DHL, FedEx, UPS)
Applications
1. Steel structure construction
2. Machinery and equipment
3. Power plants and bridges
4. Railway and heavy duty connections
2. Machinery and equipment
3. Power plants and bridges
4. Railway and heavy duty connections
Company Profile
Company introduction
Yangzhou Hongniu Import and Export Co., Ltd. is the foreign trade subsidiary of Jiangsu Hongding Automotive Parts Co., Ltd.
It was founded in June 2000. Located in Tangzhuang Town Industrial Park, Gaoyou City, 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: Various types of automotive parts and fasteners, castings and forgings, etc.
Widely used in industries such as aerospace, machinery, wind power, textiles, automotive manufacturing, petroleum, forging, etc.
We have maintained cooperative relationships with dozens of large and medium-sized enterprises in China, and are highly valued by our customers due to our good reputation and excellent quality.
It was founded in June 2000. Located in Tangzhuang Town Industrial Park, Gaoyou City, 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: Various types of automotive parts and fasteners, castings and forgings, etc.
Widely used in industries such as aerospace, machinery, wind power, textiles, automotive manufacturing, petroleum, forging, etc.
We have maintained cooperative relationships with dozens of large and medium-sized enterprises in China, and are highly valued by our customers due to our good reputation and excellent quality.

Why Choose Us
1. 20+ Years Manufacturing Experience
2. ISO9001 Certified Factory
3. Support OEM / ODM & Custom Packaging
4. Fast Delivery and Competitive Price
5. Professional Export Team for the Europe, Australia, North and South America,etc.
2. ISO9001 Certified Factory
3. Support OEM / ODM & Custom Packaging
4. Fast Delivery and Competitive Price
5. Professional Export Team for the Europe, Australia, North and South America,etc.



Certifications

FAQ
Please feel free to talk more with us!
Q1: What is the minimum order quantity?
A1: Products in stock with no MOQ. If you need us to produce, the MOQ is 10,000pcs.
Q2: Can you provide a sample?
A2: Sure, some samples are provided free of charge, but not including freight.
Q3: How long is your delivery time?
A3: Generally, it is 10-15 days if the products are in stock. or it is around 30 days to produce, and it is according to quantity.
Q4: What is your payment method?
A4: T/T, 30% deposit in advance, balance payment before loading. Order less than 5,000USD, 100% payment to reduce the bank charges.
Q5: Can you customize the product according to the requirements of drawing sheets and so on?
A5: Yes, please feel free to talk more details with us and send us the design drafts.
A1: Products in stock with no MOQ. If you need us to produce, the MOQ is 10,000pcs.
Q2: Can you provide a sample?
A2: Sure, some samples are provided free of charge, but not including freight.
Q3: How long is your delivery time?
A3: Generally, it is 10-15 days if the products are in stock. or it is around 30 days to produce, and it is according to quantity.
Q4: What is your payment method?
A4: T/T, 30% deposit in advance, balance payment before loading. Order less than 5,000USD, 100% payment to reduce the bank charges.
Q5: Can you customize the product according to the requirements of drawing sheets and so on?
A5: Yes, please feel free to talk more details with us and send us the design drafts.
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