Import Drywall Screws — Buy in Bulk from Supplier in China

Drywall screws from Hangzhou Lizhan Hardware Co., Ltd are case-hardened steel fasteners with a piercing point designed for direct insertion into wood and light steel studs without pre-drilling. The product is available in zinc, yellow zinc, and black finishes, each offering different levels of corrosion resistance and visual compatibility. These screws are engineered for interior construction applications, including gypsum board, plasterboard, and wood framing systems.

The case-hardening process creates a hard outer surface over a tougher core, improving drive resistance and reducing breakage. Zinc and yellow zinc finishes provide galvanic protection suitable for moderate humidity, while black finishes are typically phosphate-based and intended for dry indoor use. The thread profile is aggressive and tapered, ensuring rapid engagement and reduced risk of material splitting. Lengths range from 25 mm to 65 mm, with standard diameters of 3.5 mm and 4.2 mm to suit different substrate thicknesses.

These screws are commonly purchased by contractors in Southeast Asia, Africa, and Latin America for residential and commercial drywall installations. Packaging is in plastic-wrapped bundles of 1,000 or 5,000 pieces, packed in cartons of 20 to 50 bundles. Trade terms are typically FOB or CIF from Shanghai or Ningbo ports. MOQ is flexible, often starting at 1,000 kg, and lead time is approximately 15 to 20 days after deposit. No certifications are listed, but the supplier claims export-grade quality.

Hangzhou Lizhan Hardware Co., Ltd is based in Room 902, 1# Rich-Square, Tonghui Mid-Road, Xiaoshan, Hangzhou, China. The supplier is classified as imported-tier with harbor trust status, indicating verified export experience and formal business registration. The company specializes in hardware fasteners for construction markets, with drywall screws as a primary product line. No information is provided on factory size, workforce, or years of operation. The listing does not mention certifications, clients, or third-party audits.

The supplier does not claim ISO, SGS, or other quality certifications, despite referencing them in the source description. This discrepancy suggests the claim may be placeholder text. The supplier’s focus appears to be volume production and export logistics rather than technical documentation. Buyers should treat this as a manufacturer with export capability but no publicly verified quality systems unless confirmed in writing.