**Mushroom Head Square Neck Bolts / Carriage Bolt**
www.cngoshen.com
Stainless steel carriage bolt DIN603, zinc-plated carriage bolt, galvanized carriage bolt DIN603, round head carriage bolt, flat head carriage bolt, SS316 DIN603, SS304 DIN603.
**Key Features:**
- **Size:** M5–M20 or non-standard as per request and design
- **Length:** 16mm–300mm
- **Material:** 4.8 grade, 6.8 grade, 8.8 grade, 10.9 grade, SS304, SS316
- **Surface Treatment:** Plain, zinc-plated, galvanized, nickel-plated, black oxide
- **Head Type:** Round head square neck, flat head square neck
- **Standards:** DIN, GB, ISO, ANSI/ASTM, BS, BSW, JIS, etc.
- **Customization:** OEM available, based on drawings or samples
**Product Specifications:**
| **Name** | **Round Head Square Neck Bolt** |
|------------------------|----------------------------------|
| **Place of Origin** | Jiaxing, Zhejiang, China |
| **Size** | M5–M20 or non-standard |
| **Finish** | Plain, zinc-plated, black oxide, hot dip galvanized |
| **Head Type** | Round Head Square Neck |
| **Material** | Carbon steel, stainless steel, alloy steel, etc. |
| **Grade** | A2, A4, 4.8, 8.8, 10.9, 12.9, A2-70, A4-80, etc. |
| **Standard** | GB, DIN, ISO, ANSI/ASTM, BS, BSW, JIS, etc. |
| **Non-Standard** | OEM available, according to drawing or samples |
| **Samples** | Free samples available |
| **Packaging** | Bulk in master cartons, then on pallets, or as per customer’s requirement |
| **Payment Terms** | T/T or L/C |
**Images:**
[Image 1](http://i.bosscdn.com/uploads/03/a8/60/23949b2d6c5b0fc6ef4564150d.jpg)
[Image 2](http://i.bosscdn.com/uploads/2c/1b/42/1df2559d1b1eeb54a3906fc1e5.jpg)
[Image 3](http://i.bosscdn.com/uploads/1d/ba/7a/8f7f1e285867c235c13d01d6cf.jpg)
[Image 4](http://i.bosscdn.com/uploads/00/f1/e3/c2ea76026368884836f566265d.jpg)
[Image 5](http://i.bosscdn.com/uploads/df/99/01/55cf970529c9ab4d01c7277584.jpg)
**About Us:**
Jiaxing Goshen Hardware Co., Ltd. (formerly Haina Fastener Co., Ltd.) is a leading manufacturer based in China, committed to providing high-quality fasteners and excellent service to both domestic and international clients.
**Main Products:**
- **Bolts:** DIN933, DIN931, DIN419, DIN558, DIN7990, DIN6922, ASME/ANSI B18.2.1, B18.2.3.1M, GB, BSW, ISO Hex Bolt, Carriage Bolt, Heavy Hex Bolt, Flange Head Bolt, Anchor Bolt, etc.
- **Rods:** Threaded rod DIN976, threaded bar DIN975, Stud Bolt, B7 Stud Bolt, etc.
- **Nuts:** DIN934, Hex Heavy Hex Nut, 2H Nut, DIN555, Flange Nut, Cap Nut, Nylon Nut, etc.
- **Screws:** Hex Screw, Self-Drilling Screw, Self-Tapping Screw, Drywall Screw, Pan Head Screw, Button Head Screw, Machine Screw, Chipboard Screw, Furniture Screw, Wood Screw, etc.
- **Washers:** Flat Washer, Spring Washer, Lock Washer, Square Washer, Spring Lock Washer, Plain Washer, etc.
**Customization:**
We can produce according to your drawings or samples. Feel free to contact us for more details.
**Our Promise:**
1. High quality
2. Competitive pricing
3. Shortest delivery time
4. Fastest response
5. Best service
For any inquiries or to place an order, please contact us at www.cngoshen.com. We look forward to serving you!
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