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0102030405

China Flange Nuts Suppliers | Serrated and Hex Flange Lock Nuts from Reliable Factory

Hebei Chudu Metal Products Co., Ltd. is a leading factory and suppliers of high-quality flange nuts in China, designed with a wide flange base that functions as a built-in washer. Our flange nuts are available in both smooth and serrated types, ensuring strong fastening performance and reduced part count. With excellent resistance to loosening due to vibration, these flange nuts are an ideal choice for various applications, providing reliability and durability in your projects.

Product Name Flange Nut / Serrated Flange Nut / Hex Flange Lock Nut
Standards DIN 6923, ISO 4161, JIS B1190, ANSI B18.2.2, or custom
Grade 6, 8, 10, 12 / A2-70, A4-80

Product Details

Product Overview

Product Name	Flange Nut / Serrated Flange Nut / Hex Flange Lock Nut
Standards	DIN 6923, ISO 4161, JIS B1190, ANSI B18.2.2, or custom
Material	Carbon Steel
	Stainless Steel (A2-70, A4-70)
	Alloy Steel
	Brass (optional)
Grade	6, 8, 10, 12 / A2-70, A4-80
Thread Type	Metric / UNC / UNF
Surface Treatment	Zinc Plated (Clear / Yellow / Blue)
	Black Oxide
	Hot-Dip Galvanized (HDG)
	Dacromet / Ruspert
	Plain or Polished
Size Range	Metric: M5 – M24
Size Range	Inch sizes available upon request

Product Features

Integrated flange distributes pressure to prevent damage to the material

Serrated version helps resist loosening from vibration and torque

Reduced need for separate washers, saving time and cost

Durable construction for high-strength fastening

Corrosion-resistant finishes for outdoor or industrial use

Applications

Automotive and truck assemblies

Agricultural and construction machinery

Steel structure connections

Equipment and electrical installations

Solar mounting systems

General-purpose industrial fastening

Packaging & Delivery

Packaging	Bulk in cartons and pallets
	Small boxes or polybags for retail packing
	Customized logo and labeling available
Lead Time	7–30 days depending on order quantity and customization
Shipping Port	Tianjin, China

Why Choose Hebei Chudu

✓

Over 10 years experience in fastener production and export.

✓

Full control of manufacturing and quality inspection processes.

✓

Fast lead times and competitive factory pricing.

✓

Wide product range to match bolts and assemblies.

✓

ISO 9001-certified factory and export-ready documentation.

✓

Custom designs and special materials available.

Frequently Asked Questions

Q1: Which standards do your flange nuts comply with?

A1: Our flange nuts are manufactured in compliance with international standards including DIN 6923, ISO 4161, JIS B1190, and ANSI B18.2.2. Custom standards and specifications are also available upon request.

Q2: What materials and grades are available for Hebei Chudu flange nuts?

A2: We offer flange nuts in Carbon Steel, Stainless Steel (A2-70, A4-70), Alloy Steel, and Brass (optional). Available grades include 6, 8, 10, 12 for carbon steel, and A2-70, A4-80 for stainless steel.

Q3: How does the serrated flange design benefit my application?

A3: The integrated flange distributes clamping pressure over a wider area, preventing damage to the mating material. The serrated version specifically grips the bearing surface to effectively resist loosening caused by vibration and torque.

Q4: What surface treatments do you offer for corrosion protection?

A4: To meet various environmental demands, we provide Zinc Plating (Clear, Yellow, Blue), Black Oxide, Hot-Dip Galvanized (HDG), Dacromet, Ruspert, as well as Plain or Polished finishes.

Q5: What is the typical lead time and shipping port for orders?

A5: Our standard lead time ranges from 7 to 30 days, depending on the order volume and customization requirements. All goods are securely packaged and shipped from Tianjin Port, China.

Q6: What packaging options do you provide?

A6: We offer bulk packaging in cartons and pallets, small boxes or polybags for retail packing, and customized logo or labeling services to match your brand requirements.