Double-tooth disc spring lock washers are available in Series S and Series VS. The unique performance of tooth-faced disc spring lock washers is provided by their toothed surface, which solves the safety issue of bolted connections. After the washer is connected to the bolt, it prevents the bolt from loosening after vibration by increasing frictional resistance.

DIN9250, JB/ZQ4340

During assembly, the inner inclined tooth surfaces face each other, and the outer radial convex surfaces engage with the contact surfaces at both ends. When the connected part is subjected to vibration and the bolt tends to loosen, only the inner inclined tooth surfaces of the two washers are allowed to move relative to each other, generating lifting tension, thus achieving a 100% locking effect.

Environmental protection equipment, medical equipment, communication equipment, power facilities, electronic products, food machinery, petrochemical industry, ship assembly, pump and valve pipelines, building curtain walls, open-air occasions, etc.

Because the molecular arrangement of stainless steel changes after cold heading and cold rolling, resulting in slight magnetism. However, this is only a physical property, and its chemical properties remain unchanged.

Founded in 2008, Zhuhai Jiali Hardware Products Co., Ltd. is a professional enterprise engaged in the production and sales of industrial fastener products. Currently, the company's main products include hexagon head bolts, socket head cap screws, micro screws, set screws, various nuts, threaded rods, flat washers, spring washers, open retaining rings, various special-shaped washers, 12.9-grade alloy steel high-strength screws, hexagon socket wrenches, and box-end wrenches. It also provides non-standard customization according to drawings.

The products mainly comply with Chinese National Standards (GB), German Standards (DIN), American Standards (ANSI), British Standards (BS), and international standards. The main industries served include automotive, electronics, medical equipment, hardware, machinery, shipbuilding, chemical engineering, communications, construction, etc. Meanwhile, all kinds of relevant documents are available. Welcome to contact us.