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Yellow Zinc Wing Screws with Edged Wings DIN 318 are user-friendly fasteners. They have a wing - shaped head with edged wings, which allows for easy manual tightening without the need for tools. Made from carbon steel, these screws undergo a yellow zinc plating process. This plating gives them good corrosion resistance, making them suitable for use in indoor environments or outdoor settings with mild moisture, such as in home workshops, small - scale manufacturing, and DIY projects.

Complying with the DIN 318 standard, they come in various sizes. These screws are widely used in furniture assembly (attaching table legs, cabinet doors), equipment enclosures (securing control panel covers), and exhibition displays (setting up booth frameworks), where quick and tool - free fastening is needed.

Instructions for Use：

To use, simply align the screw with the threaded hole. Then, grip the edged wings and turn the screw clockwise by hand until it is securely fastened. For disassembly, turn the screw counterclockwise by hand. There's no need for additional tools, which makes installation and removal quick and convenient. When using, make sure the mating part has properly tapped threads to ensure a secure connection.

Hebei Duojia Metal Products Co., Ltd. was formerly known as Yonghong Expansion Screw Factory. It has over 25 years of professional experience in manufacturing fasteners. The factory is located in the China Standard Room Industrial Base - Yongnan District, Handan City. It conducts online and offline production and manufacturing of fasteners as well as one-stop sales service business.

The factory covers an area of over 5,000 square meters, and the warehouse covers an area of over 2,000 square meters. In 2022, the company carried out industrial upgrading, standardized the production order of the factory, improved the storage capacity, enhanced safety production capacity, and implemented environmental protection measures. The factory has achieved a preliminary green and environmentally friendly production environment.

The company has cold pressing machines, stamping machines, tapping machines, threading machines, forming machines, spring machines, crimping machines, and welding robots. Its main products are a series of expansion screws known as "wall climbers".

It also produces special-shaped hook products such as wood tooth welding sheep eye ring screws and machine tooth sheep eye ring bolts. In addition, the company has expanded new product types from the end of 2024. It focuses on pre-buried products for the construction industry.

The company has a professional sales team and a professional follow-up team to safeguard your products. The company guarantees the quality of the products it offers and can conduct inspections on the grades. If there are any problems, the company can provide professional after-sales service.

Our export countries include Russia, South Korea, Britain, France, Germany, Italy, Canada, Mexico,Brazil, Argentina, Chile, Australia, Indonesia, Thailand, Singapore, Saudi Arabia, Syria, Egypt, Tanzania.Kenya and other countries. Our products will be spread all over the world!

WHY CHOOSE US?

1.As a factory-direct upplier,we eliminate middleman margis to offer you the most competitive pricing for high-quality fasteners.
2.our factory pass the ISO 9001 and AAA certification .we have the hardness testing and the test of zinc coating thickness for galvanized products.
3.with full contrl over production and logistic,we guarantee on-time delivery even for urgnt orders .
4.our engineering team can customize faseners from prototype to mass production , including unique thread designs and anti-corrosion coatings.
5.From carbon steel hex bolts to high-tensile anchor bolts ,we provide a one-stop solution for all your fastener needs.
6.If any defect is found ,we’ll reship replacements within 3weeks  of our cost .