Hongniu Fasteners Countersunk Flat Washer Navy Blue Head Gaskets for Screw RC/Fpv/PC/Drone/Mechanical Accessories Model Part

• Customization: Available
• Type: Countersunk Washer
• Material: ODM/OEM
• Model NO.: Countersunk Flat Washer
• Combination Washer Structure: ODM/OEM
• Combination Washer Packaging: All Inclusive
• Spring Washer Type: Standard
• Delivery Time: 4-40 Working Days
• Freight: Real-Time Quotation
• MOQ: 10, 000
• Thickness: ODM/OEM
• Dia: ODM/OEM
• Transport Package: Carton
• Specification: ODM/OEM
• Trademark: ODM/OEM
• Origin: China
• HS Code: 3926901000
• Production Capacity: 1000tons/Month
• Package Size: 10.00cm * 5.00cm * 5.00cm
• Package Gross Weight: 0.500kg

Product Description

Our Countersunk Flat Washers are engineered to provide a flush surface for countersunk screws, ensuring secure fastening and stable load distribution. Manufactured with high precision and strict quality control, these washers are widely used in automotive, machinery, construction, and industrial equipment.

We offer multiple materials, surface finishes, standards, and customized dimensions to meet various global market demands.

Key Features & Advantages

• Flush Surface Design - Ideal for countersunk screws, ensuring a smooth finished look

• High Strength Materials - Available in stainless steel, carbon steel, alloy steel

• Corrosion Resistance Options - Zinc plated, black oxide, HDG, nickel, Dacromet

• Smooth Edges & Precise Tolerance - No burrs, consistent thickness

• Wide Application - Machinery, automotive parts, equipment assembly, building hardware

• OEM / ODM Service - Custom sizes, standards, packaging, logo printing

Size (d)	OD (mm)	ID (mm)	Thickness (mm)	Standard	Material	Surface Finish
M3	6	3.2	0.5-1.0	DIN / Custom	SS304 / SS316 / Carbon Steel	Plain / Zinc / Black
M4	8	4.3	0.8-1.2	DIN / Custom	SS304 / SS316 / Carbon Steel	Plain / Zinc / Black
M5	10	5.3	1.0-1.5	DIN / Custom	SS304 / SS316 / Carbon Steel	Plain / Zinc / HDG
M6	12	6.4	1.6	DIN / Custom	SS304 / SS316 / Carbon Steel	Plain / Nickel / Dacromet
M8	16	8.4	2.0	DIN / Custom	SS304 / SS316 / Carbon Steel	Zinc / HDG / Black
M10	20	10.5	2.5	DIN / Custom	SS304 / SS316 / Carbon Steel	Zinc / Black / Customized
M12	24	13.0	3.0	DIN / Custom	SS304 / SS316 / Carbon Steel	Plain / HDG / Customized

Material Options: Stainless Steel: SS201 / SS304 / SS316,Carbon Steel: C1018 / C1045,Alloy Steel,Brass / Copper (Optional)
Surface Finishes: Zinc Plated (Blue / White / Yellow), Black Oxide, Hot-Dip Galvanized (HDG), Nickel / Chrome, Dacromet / Geomet, Customized coating
Applications: Automotive Parts & Chassis, Machinery Equipment, Construction Fastening, Industrial Assembly, Hardware & Tools

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.

Cooperative Partners

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.

 

 

Finish	Description
Natural / Plain	No surface treatment
Zinc Plated	Corrosion protection
Black Oxide	Industrial appearance
Painted	Custom colors available
Anodized	For aluminum rivets

Quality Control

• Incoming material inspection

• Dimensional inspection

• Tensile & shear strength testing

• Surface finish inspection

• Random sampling before shipment

Packaging & Delivery

Item	Details
Packaging	Small boxes / cartons / pallets
Custom Packaging	Available
MOQ	Negotiable
Delivery Time	15-30 days
OEM / ODM	Supported

Why Choose Us

• Professional fastener manufacturer & exporter

• Stable quality and competitive pricing

• Rich experience in DIN / ISO standards

• One-stop fastener supply service

• Fast response & technical support
  

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 and is 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: 20 million yuan, total assets: 78 million yuan, and fixed assets: 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. 
Please feel free to talk more with Gianna about fasteners

 

 

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.