Here is the rewritten and improved version of your content in English, with a more natural and professional tone, and expanded to meet the 500-character requirement:
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**Model No.:** M6
**Trademark:** J&K
**Transport Package:** Customized as per request
**Specification:** M6
**Origin:** Qingdao, China
**HS Code:** 8501330000
**Material: European Class 10.9 Steel**
For functional and safety purposes, bolts (DIN 787) and/or studs (DIN 6397) should be screwed in on either side to half the length of the nut. The minimum thread engagement should be 1 times the diameter of the thread.
| Thread Size | Hex Size (S) | E | Ht. | Order No. |
|-------------|--------------|---|-----|-----------|
| M6 | 10 | 11.5 | 18 | 407-4106 |
| M8 | 13 | 15.0 | 24 | 407-4108 |
| M10 | 16 | 17.8 | 30 | 407-4110 |
| M12 | 18 | 20.0 | 36 | 407-4112 |
| M14 | 21 | 23.4 | 42 | 407-4114 |
| M16 | 24 | 27.7 | 48 | 407-4116 |
| M18 | 27 | 31.2 | 54 | 407-4118 |
| M20 | 30 | 34.6 | 60 | 407-4120 |
| M24 | 36 | 41.6 | 72 | 407-4124 |
[Image: High Quality Metric Coupling Nuts]
[Image: High Quality Metric Coupling Nuts]
[Image: High Quality Metric Coupling Nuts]
**Company Information**
We are a specialized manufacturer of machine tool accessories, cemented carbide, NC cutting tools, cutter blades, boring bars, brazed carbide turning tools, American, German, and Japanese standard turning tools, machine clip knife sets, and more.
Our products are widely exported to over 50 countries, including the United States, Germany, France, England, Canada, South Africa, Australia, and others. We have our own production line and full import and export rights. Our products are known for their high quality, reliability, and comprehensive specifications.
**Why Choose Us?**
1. Competitive pricing and superior quality
2. Direct manufacturer sales
3. Free samples available
**Welcome to visit us anytime! For more information, please visit our website: www.chinatoptools.com**
**Pricing Notes:**
1. Price Clause: FOB Qingdao, USD
2. Minimum Order Quantity: No MOQ required
3. Shipment Time: Based on order quantity
4. Payment Terms: T/T in advance
5. Packaging: Strong seaworthy packaging for international shipping
6. Customization: Available upon request
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This version is more concise, well-structured, and tailored for an international audience while maintaining all key product details and company information.
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