Import Din571 Hexagon Head Wood Screw — Buy in Bulk from Supplier in China

The Din571 hexagon head wood screw, also known as a hex lag screw, is manufactured to DIN 571 standards with diameters ranging from M5 to M20 and lengths tailored to industrial woodworking and structural applications. The product is available in plain, zinc-plated, black oxide, and hot-dip galvanized finishes, as specified in the supplier's listing. These screws are designed for high-torque applications where a secure, vibration-resistant connection is required in timber or composite materials.

The core material is carbon steel conforming to standard mechanical properties for fasteners in heavy-duty use. Surface treatments follow typical industry practices: zinc plating offers moderate corrosion resistance, black oxide provides a low-glare finish with minimal dimensional change, and hot-dip galvanizing delivers long-term protection in outdoor environments. The dimensional tolerances align with DIN 571 specifications for head height, shank diameter, and thread pitch, though exact tolerances are not stated by the supplier.

These screws are commonly purchased by manufacturers of timber framing, pallet systems, agricultural equipment, and outdoor furniture. Buyers typically order in bulk cartons of 20 to 25 kilograms or in smaller retail boxes for distribution. Delivery timelines are stated as within 25 days per container, and packaging options include bulk cartons, small boxes, and color boxes. The supplier confirms ISO 9001 and ISO 14001 certifications but does not provide test reports or batch traceability data.

Haiyan Yuanyang Standard Piece Co., Ltd is a manufacturing supplier based in Yucheng Town, Haiyan County, Zhejiang Province, China. The company operates within the Huangqiao Hardware Park and specializes in the production of standard fasteners, including hexagon head wood screws. Its trust tier is listed as harbor, indicating verified factory status, but no public information confirms annual output, workforce size, or export history.

The supplier does not provide details on R&D capacity, client list, or production equipment beyond mentioning 3- and 4-station formers. There is no response rate or average response time recorded, and no third-party audit reports are referenced. The presence of ISO certifications suggests a documented quality management system, but buyers must request test certificates for each batch.