• Specification：3.5mm(#6), 3.9mm(#7), 4.2mm(#8), 4.5mm(#9), 4.8mm
• Trademark：STRONG BOLT
• Origin：Ningbo, China
• HS Code：7318140090
• Production Capacity：2500tons,Year

Basic Info.

Specification 3.5mm(#6), 3.9mm(#7), 4.2mm(#8), 4.5mm(#9), 4.8mm Trademark STRONG BOLT Origin Ningbo, China HS Code 7318140090 Production Capacity 2500tons/Year

Product Description

• Carton size : The ordinary carton  (27*25*14.5CM) ,  or according to the demand of the customers.
• Packing :  plastic bags,Box, carton , then put on pallets, or according to the demand of the customers.



• We are a typical China supplier with more than 10 years experiences on fasteners.We are professionally exporting under the standards of DIN, JIS, GB, ANSI, and BS, as well as nonstandard fasteners. Now we have gained close cooperation with clients from Canada, Dubai, Europe, India,Chile,Peru and Russia, and won good comments from users. We always fulfilling customers' expectations by following the principle of "Providing services whenever and wherever our customers need it" to establish a steady beneficial relationship and wining customers' hearts. If you need more information, please contact our sales department.


Our screw after various processing, its tensile strength, high surface hardness, good mechanical properties. The surface treatment of screw is recommended to adopt surface coating or surface oxidation, adopting high-tech environmental protection technology, and adopting self-developed new technology and new technology to continuously reduce the production cost of products, which has obvious advantages and competitiveness in quality and price!