**Product Specifications:**
- Model No.: YDR-L614
- Type: Round Head
- Head Style: Round
- Grade: 4.8
- Surface Treatment: Zinc, Nickel, Chrome Plated
- Sample Policy: Free Samples Available
- Payment Terms: T/T (Telegraphic Transfer)
- MOQ: 5,000 PCS
- Thread Types: Metric, UNF, UNC
- Packaging: Small Box + Carton + Pallet or Customized as Per Request
- HS Code: 7318159090
- Material: Carbon Steel
- Connection Type: Common Bolt
- Standards: DIN, ANSI, GB
- Available Materials: Carbon Steel, Alloy Steel, Stainless Steel, Brass
- Size Range: M3 to M12
- Packing Options: Small Box and Carton or Customized Based on Your Needs
- Delivery Time: 25-35 Days
- Shipping Port: Shanghai or Ningbo
- Brand Name: NBYD
- Origin: Ningbo, Zhejiang, China

**About Our Company:**
Established in 2002, Ningbo Yunding has built a strong reputation over the past 20 years as a reliable manufacturer of fasteners and fixing systems. We serve clients across the globe, including North America, Europe, Japan, and Australia. Our product range includes nuts, bolts, screws, and more, made from a variety of materials such as steel, stainless steel, and nylon.
We are committed to delivering high-quality products by using premium materials sourced from Europe and advanced machinery from Switzerland and Italy. Our ISO 9001:2000-certified production facilities ensure strict quality control at every stage, and we provide detailed reports for each order, covering tensile strength, torque, and plating thickness.
With a monthly production capacity of over 500 tons, we can handle both small and large orders efficiently. We offer free samples within 7 days and can complete most orders within 1–2 months. For OEM or ODM projects, we welcome your inquiries and look forward to working with you.
**About This Product – Hexagonal Nylon Lock Nut (Thick):**
Nylon lock nuts are ideal for applications where vibration resistance is essential. These nuts are designed to maintain a secure connection even under harsh conditions. They are available in various sizes and materials, suitable for different industries and environments.

**Size Details:**
- **Material:** Carbon Steel, Alloy Steel, Stainless Steel, Brass, Copper, Spring Steel
- **Standards:** DIN, ANSI, ASTM, GB, JIS, ISO, Non-standard
- **Grade:** 6, 8, 10
- **Size Range:** M3 to M12
- **Thread Types:** Metric, UNF, UNC
- **Surface Finishing:** Plain, Black Phosphated, White/Yellow/Black Zinc Plated, HDG, Dacromet
- **Packing:** Carton/Pallet, Small Box/Carton/Pallet, or as per customer request
- **MOQ:** 5,000 PCS
- **Sample Policy:** Free Samples
- **Delivery Time:** 25–35 Days
- **Loading Ports:** Shanghai or Ningbo
- **Export Market:** Global
**Our Export Markets Include:**
Asia, Australasia, Central/South America, Eastern Europe, Middle East/Africa, North America, and Western Europe.
**Why Choose Us?**
- Brand-name Parts
- Country of Origin
- Distributorships Offered
- Electronic Link
- Experienced Staff
- Form A
- Guarantee/Warranty
- International Approvals
- Military Specifications
- Packaging
- Price
- Product Features
- Product Performance
- Prompt Delivery
- Quality Approvals
- Reputation
- Service
- Small Orders Accepted
We hope our products will be a valuable addition to your business. If you have any questions, feel free to reach out — I’m here to help!
**Best Regards,**
Linda
Ningbo Yunding International Enterprise Ltd.
Address: B122 Duoyuan Career Creating Mansion, No. 188 South Donghanmen Road, Yuyao City, Zhejiang, China.
Tel: +86-574-58225235
Fax: +86-574-58221411
Mobile: 15267834553
Welcome to Our Company

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