Flange Hex Nuts M4-M12 | Galvanized Serrated Lock Nuts - HighFasteners

Self-Locking Fastener with Integrated Washer. Design: Flanged Hex with Serrated Bearing Surface. Sizes: M4 M5 M6 M8 M10 M12. Finish: Galvanized / Zinc Plated for corrosion protection. Feature: Serrations prevent loosening under vibration. Offer: Factory Direct wholesale pricing. Custom grades/sizes available. 💡 Need Non-Standard Sizes? We Are OEM Factory! We specialize in customizing flange nuts based on your Drawings or Samples. Custom Feature: Plain or Serrated Flange. Action: Click the button below to upload your drawing for a free quote.

Product Overview

The Flange Hex Nut features an integrated washer-like flange that distributes load over a larger surface area, eliminating the need for a separate washer. The serrated underside provides reliable anti-loosening performance under vibration.

Galvanized for excellent corrosion resistance, it's ideal for heavy industry, automotive, mining, and general assembly applications.

Key Features:

Self-Locking Design: Serrated flange grips bearing surface to prevent nut loosening.

Load Distribution: Wide flange spreads pressure for stronger, more stable connections.

Corrosion Resistant: Galvanized/zinc plating ensures long-term durability in harsh environments.

Technical Specifications:

Property	Specification
Product Name	Flange Hex Nut (Serrated Lock Flange Nut)
Standard	DIN/GB/ASTM
Sizes	M4, M5, M6, M8, M10, M12
Finish	Galvanized / Zinc Plated
Measurement System	Metric (Imperial available)
Flange Type	Serrated / Plain
Application	Heavy Industry, Mining, Automotive, General Industry, Oil & Gas
Brand	Hangfan

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Email: admin@changhua-electrical.com | WhatsApp: +86 181 3296 8158

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Detailed Product Gallery

Manufacturing & Quality Control

Advanced Cold Heading
Precision manufacturing.

Optical Sorting
0-PPM defects.

Lab Testing
Tensile & Salt Spray.

Project References

Heavy Industry
Vibration Resistance

Automotive
Secure Assembly

Mining Equipment
Load Distribution

Frequently Asked Questions

Q: Can I get free samples?
Yes! We provide free samples for standard flange nuts. You only need to cover the shipping cost.

Q: What sizes and finishes do you support?
M4-M12 standard, galvanized/zinc plated. Custom options available.

Q: What certifications do you have?
We are ISO9001:2015 Certified. Every shipment comes with a Factory Quality Inspection Report.

Q: What is your delivery time?
Stock items: 3-7 days. Mass production: 20-30 days.

Q: Can you produce according to drawings?
Yes, OEM/ODM is our strength. Send us CAD drawings for a quote within 24 hours.

Q: What are your payment terms?
We generally accept T/T (30% deposit, 70% before shipment). For long-term partners, we can discuss L/C.