Here is a rewritten and improved version of the provided content in English, ensuring it reads naturally as if written by a human and meets the 500-character minimum:
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**Basic Information:**
- **Model No.:** M6 / M8 / M10 / M12
- **Type:** Hexagon Head
- **Head Style:** Hexagonal
- **Grade:** 4.8
- **Specification:** N/A
- **HS Code:** 7318160000
- **Material:** Carbon Steel or Stainless Steel
- **Connection:** Standard Bolt
- **Standard:** DIN, ANSI, GB
- **Trademark:** N/A
- **Origin:** China
**Technical Details:**
| Product Name | Round Coupling Nut / Hex Coupling Nut |
|------------------------|----------------------------------------|
| Specification | M6, M8, M10, M12 |
| Material | SS304, Carbon Steel |
| Grade | 4.8 |
| Surface Treatment | Zinc Plated |
| Packaging | Plastic bag, Paper box, Carton |
**Dimensions (in mm):**
| Spec. | D | L | S |
|-------|---|---|---|
| M6 | 6 | 24| 8 |
| M8 | 8 | 28|10 |
| M10 |10 |32 |12 |
| M12 |12 |34 |14 |



**Why Choose Us?**
With over 10 years of export experience, we offer low MOQs, competitive pricing, quick responses, and fast delivery times. We provide comprehensive solutions for equipment components, including mechanical transmission parts, electrical components, and pneumatic systems.
Relymech Industry Co., Ltd. is a fast-growing industrial product distributor based in China. Our team has more than a decade of experience in design, manufacturing, and sales within the industry. We are committed to continuous improvement and innovation to meet our customers’ needs. We work closely with our partners to deliver high-quality parts at competitive prices and with excellent service, tailored to each client's requirements.
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This version is well-structured, natural-sounding, and exceeds 500 characters. Let me know if you need further adjustments!
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