High-quality 1022A steel or stainless steel is selected as the raw material. All materials undergo strict inspection to ensure hardness, stability, and consistency before entering production.

The steel wire is drawn through a continuous reduction process to reach the required diameter, ensuring uniform thickness, improved ductility, and a smooth surface suitable for forming.

Cold heading forms the screw head with high precision, ensuring accurate dimensions and stable shape for reliable mechanical performance during fastening.

Threads are rolled using precision dies to create clean, sharp, and durable threads, enhancing fastening strength and ensuring smooth installation.

Heat treatment strengthens the screws through controlled heating and cooling cycles, improving hardness, toughness, and overall durability.

Various surface treatments—such as phosphating, galvanizing, or other protective coatings—are applied to enhance corrosion resistance and long-term durability.

Keel tests are performed on drywall screws and self-drilling screws, while solid wood tests are conducted on chipboard screws to ensure smooth drilling and stable fastening performance.

Head size, outer diameter, and length are measured to ensure each screw meets required specifications and maintains dimensional accuracy.

Checking torque resistance to ensure strong fastening strength and durability.
This test confirms that the screw can withstand twisting forces without deformation or failure.

Evaluating corrosion resistance under accelerated environmental conditions.
The test simulates long-term exposure to harsh environments to ensure coating durability.

Screws are packed in inner plastic bags before being placed into durable cartons for clean, safe, and convenient bulk handling.

Woven bags are wrapped with protective plastic film and palletized to enhance transport stability and loading efficiency.

Custom small boxes and colored cartons are available, with the option to control the exact number of screws per box to match your packaging requirements.

We support both land and sea transportation and offer flexible trade terms to accommodate various shipment needs.