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**Product Specifications:**
- **Model No.:** DIN444-1983
- **Finish:** QPQ, Passivation, Electrophoresis, Nickel, Copper
- **Material:** 304, 316, 321, 410
- **Thread Type:** Coarse Thread, Fine Thread, BSW, BSF
- **Performance Grade:** A2-70, A4-70/80
- **Size Range:** M5 to M39
- **Color:** Silver
- **Length:** 30mm to 300mm
- **OEM Available:** Yes
- **Brand:** Zhengan
- **Trademark:** Leite
- **Certifications:** ROHS, SGS, ISO
- **Origin:** Guangdong, China
- **HS Code:** 73181500
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**Why Choose Us?**
1. We are a professional manufacturer with over 8 years of experience in designing and producing fasteners.
2. We offer customized solutions tailored to your specific requirements and drawings.
3. Our main markets include Europe and the Americas, with a customer satisfaction rate of 96.3% in the last three months.
4. We guarantee on-time delivery.
5. If the product image doesn't match your needs, feel free to contact us—we’ll customize it for you.
**Our Main Products:**
- **Bolts:** Custom bolts, square head bolts, hex bolts, carriage bolts, U-bolts, truss bolts, anti-theft bolts, weld bolts, adjusting screws, ball screws, stainless steel bolts, and more.
- **Nuts:** Custom nuts, thick nuts, hex nuts, stainless steel nuts, slotted nuts, wing nuts, self-locking nuts, conical nuts, T-nuts, and more.
- **Screws:** Custom screws, security screws, anchor bolts, machine screws, automotive screws, butterfly screws, and special screws.
- **Construction Accessories:** Custom parts, U-shaped components, hooks, architectural anchors, and fasteners.
- **Mining & Railway Accessories:** Custom sheaves, splints, and other specialized parts.
- **Pins:** T-pins, cylindrical pins, tapered pins, combination pins, and more.
**Applications:**
Our products are widely used in machinery, construction, automotive manufacturing, shipbuilding, docks, outdoor equipment, sports gear, fitness products, and more.
Whether you need standard or custom fasteners, we are here to provide high-quality solutions that meet your needs. Contact us today for a quote or further assistance!
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