China OEM Welding Stamping Parts Factory

There are many names for bolts, and everyone may have different names. Some people call them screws, some people call them bolts, and some people call them fasteners.

SEMS screws are also called combination screws, include screws and washers, and washers cannot be removed. Common SEMS screws include hexagonal SEMS screws, hexagon socket SEMS screws, pan head SEMS screws, and torx socket SEMS screws. So how are SEMS screws produced? Why don't washers fall off the screws?

Fastener Fair Global 2025 was grandly opened at the New Stuttgart Exhibition Center in Germany from March 25 to 27. As the largest and most influential fastener exhibition in Europe, held every two years, this exhibition has attracted global attention. Jiaxing Aoke Hardware Technology Co., Ltd., as an exhibitor, exhibited its superior products, stainless steel fasteners, non-standard custom screws and stamping parts. Stainless steel fasteners are made of high-quality stainless steel materials (stainless steel A2 and stainless steel A4) and have excellent corrosion resistance, high temperature resistance and high strength. Each product has been finely processed and strictly tested for quality to ensure that each fastener can function stably in complex and harsh environments, and is widely used in construction, machinery, electricity, automobiles and other industries.

SS410 is a martensitic stainless steel that can be heat-treated to achieve high strength and hardness. Heat-treated SS410 self drilling screws achieve a surface hardness exceeding HV500, significantly improving drilling performance and torsional strength. They can be used not only in wood but also in steel and aluminum alloys. To enhance the corrosion resistance of SS410 self drilling screws, Aoke can offer a Ruspert coating. Salt spray tested for over 1,000 hours, they are suitable for long-term use in outdoor, coastal, and high-humidity environments.

China's total fastener exports reached 4.673 million metric tons, up 10.9% year-on-year, with export value totaling US$8.96 billion, a 7.7% increase. Monthly performance remained robust, with September exports reaching 516,600 metric tons (up 8.2% YoY) and export value hitting $985 million (up 9.4% YoY).

This newly launched route between Ningbo-Zhoushan Port and Ho Chi Minh City Port, designed for “on-time delivery and cost reduction in container shipping,” will significantly reduce vessel turnaround time and cargo transshipment cycles through precise schedule management, efficient port coordination, and deep collaboration among port, shipping, and terminal operators. It will provide customers with more punctual, reliable, and economical maritime services.