**Product Specifications for DIN931 Square Head Bolt and Nut**
- **Model No.:** Bolt
- **Application:** Machinery
- **Finish:** Color-Zinc Plated
- **Item Name:** DIN931 Square Head Bolt and Nut
- **Surface Treatment:** Galvanized, Black, Bright, Color Coated, Nickel Plated
- **Size:** M6-M12
- **Thickness:** 10 mm
- **With Across Flats:** 19 mm
- **With Across Corners:** 21.1 mm
- **Certificate:** SGS
- **Price Term:** EXW, FOB, CIF
- **Delivery Time:** 15-30 Days
- **Loading Port:** Tianjin
- **Trademark:** J&J
- **Transport Package:** 25kgs Cartons, 900kgs per Pallet
- **Specification:** SGS
- **Origin:** China
- **HS Code:** 7317000
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### Description of DIN931 Square Head Bolt
This square head bolt is designed for a wide range of industrial and mechanical applications. It is ideal for use in construction, engineering, automotive, and other heavy-duty sectors.
#### Key Features:
1. **Surface Treatment:** Available in multiple finishes such as zinc-plated, black, bright, color-coated, and nickel-plated to suit different environmental conditions and aesthetic preferences.
2. **Material Options:** Made from mild steel, carbon steel, or stainless steel, ensuring durability and resistance to corrosion.
3. **Quality Control:** All products are manufactured under strict quality control measures, ensuring reliability and performance.
4. **Custom Designs:** We welcome custom designs and can tailor the product according to your specific requirements.
5. **Product Range:** In addition to bolts, we also supply a wide variety of high-quality building materials such as nails, screws, iron wires, welding electrodes, and safety equipment.
6. **Supply Capacity:** Our company has strong production and logistics capabilities, with our own warehouses to ensure quick delivery times and consistent service.
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### Product Details for Hex Head Nut
| **Item Name** | **Hex Head Nut** |
|---------------------|-------------------------------|
| **Grade** | Class 4.8, 6.8, 8.8, 10.9, 12.9 |
| **Size** | M6-M20 |
| **Surface Treatment** | Black, White, Blueness Zinc (Cr.3/Cr.6), Yellow Zinc, Dacromet, Hot Dip Galv, Nickel Plating |
| **Standard** | DIN934 |
| **Net Weight** | KGS/MPCS |
| **Supply Ability** | 500MT/Month |
| **MOQ** | 100-150MPCS |
| **Applications** | Engineering, Construction, Bicycle, Motorcycle, Automotive, Medical, Sports, Anchors, etc. |
| **Payment Terms** | T/T, L/C at sight |
| **Packing Options** | (1) 25kg cartons, 900kg/pallet; (2) 50kg gunny bags, 900kg/pallet; (3) Custom PP bags |
| **Port of Loading** | Tianjin Port |
| **Delivery Time** | 15–30 days after confirmation |
| **Target Markets** | South & North America, Europe, East & Southeast Asia, Africa, Australia, and more |
| **Company Website** | [www.jandj247.en.made-in-china.com](http://www.jandj247.en.made-in-china.com) |
| **Notice** | Please provide details on size, quantity, material, grade, and surface treatment. For non-standard items, please send drawings, photos, or samples. |
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### Our Services
1. **After-Sales Support:** Any issues will be resolved promptly and efficiently.
2. **Industry Experience:** With years of experience in fastener manufacturing and trade, we specialize in providing reliable and high-quality products.
3. **Customization:** We can provide detailed specification lists based on your needs.
4. **Flexible Packaging:** Packing options can be customized to meet your shipping requirements.
5. **Competitive Pricing:** We offer high-quality products at competitive prices.
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### Company Profile
Guangzhou 247 International Trade Co., Ltd. is a professional supplier of construction and hardware products to international markets. Our product range includes iron nails, fasteners, building wires, wire meshes, welding consumables, gardening tools, and labor protection items. We are committed to delivering quality, timely service, and long-term partnerships with our clients.
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### Product Images
[Image 1: DIN931 Square Head Bolt and Nut Carriage Bolt](http://i.bosscdn.com/uploads/f0/6c/07/e48bcf7fdb8327f5c3d81a3066.jpg)
[Image 2: DIN931 Square Head Bolt and Nut Carriage Bolt](http://i.bosscdn.com/uploads/9b/db/8b/08a7f270668e4f5246e86dae83.jpg)
[Image 3: DIN931 Square Head Bolt and Nut Carriage Bolt](http://i.bosscdn.com/uploads/d0/4b/7e/4691fcd62ad17a3d9668e69e48.jpg)
[Image 4: DIN931 Square Head Bolt and Nut Carriage Bolt](http://i.bosscdn.com/uploads/4e/2e/67/b49d19dda7dbed175d7630f5ad.jpg)
[Image 5: DIN931 Square Head Bolt and Nut Carriage Bolt](http://i.bosscdn.com/uploads/2e/a8/47/c00eaeff2bd9d183b9583d8e95.jpg)
[Image 6: DIN931 Square Head Bolt and Nut Carriage Bolt](http://i.bosscdn.com/uploads/59/86/c9/354c8c90c6a5f75390066b805a.jpg)
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