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Zhejiang QD Industrial Co., Ltd.

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What is a self-locking nut

What is a self-locking nut

A self-locking nut is a type of nut that can be self-locking by seat friction. Generally, nuts will loosen themselves due to vibration and other reasons during use. To prevent this phenomenon, self-locking nuts were invented. The main function of a self-locking nut is to prevent loosening and vibration, especially in special situations Its working principle is generally self-locking by friction. The types of self-locking nuts classified by function include those with embedded nylon rings, those with neck closures, and those with metal anti loosening devices.

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What to do if the nut cannot be unscrewed

What to do if the nut cannot be unscrewed

1. For "slot" and "cross" head nuts, the screwdriver can stand upright, vibrate at the rear of the screwdriver (pay attention to force), and then twist again. 2. For hexagonal head nuts, they can be directly vibrated (pay attention to the force) and then twisted. If there are no edges, you can manually slot the bolt head with a saw or flat chisel, and then unscrew it with a screwdriver. 3. In the case of sliding or broken threads, a smaller drill bit can be used to drill them off first (pay attention to the verticality of the drill bit), and then an equal diameter tap can be used to repair them.

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What are the types of nuts

What are the types of nuts

1. Stainless steel nuts Self-locking nut, locking nut, four-claw nut, screw-in nut, safety nut, fine thread screw connection nut, self-locking hexagonal cap nut, special foundation screw nut, hexagonal crown thin nut, eye nut, fine-tooth all-metal hexagonal flange locking nut, fine-tooth non-metallic insert hexagonal flange locking nut, fine-tooth hexagonal flange nut, welding square nut, welding hexagonal nut, snap nut, embedded round nut, slotted round nut, side hole round nut, end hole round nut, small round nut, round nut, circular nut, butterfly nut.

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Revealing What is the "Technical Time Difference" in the Fastener Industry

Revealing What is the "Technical Time Difference" in the Fastener Industry

In the past 10 years, the improvement of China's fastener manufacturing technology has been invisible in the

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Resolution on Promoting the Healthy Development of Fastener Exports

Resolution on Promoting the Healthy Development of Fastener Exports

Through decades of effort, China's fastener industry has gradually developed and grown.

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Discussion on the Development Situation of Domestic Fastener Market

Discussion on the Development Situation of Domestic Fastener Market

Fasteners, commonly known as screws and nuts, are fundamental mechanical components and are known as the 'rice of industry'. They can be found in everything from space shuttles, automobiles, and mechanical equipment to tables, chairs, and benches. This industry is a strategic industry that is labor-intensive, capital intensive, and high-tech, and countries around the world attach great importance to its development. After years of development, China has developed into the world's largest producer of fasteners. It is reported that there are currently nearly 10000 fastener production and trade enterprises in China, with over 1 million employees, which have a high contribution to employment. Carbon steel fasteners produced domestically are mainly used in the automotive industry, electronic products, electronic equipment, mechanical equipment, construction, and general industrial applications. In terms of production areas nationwide, the fastener industry in Wenzhou, Yongnian, and Haiyan has witnessed the largest scale and most distinct characteristics.

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11 Luyuan Road, Nanmingshan Street, Liandu District, Lishui City, Zhejiang Province, China

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