Import Din433 Flat Washers — Buy in Bulk from Supplier in China

Din433 flat washers from Tianjin Yushu T.I.T Co., Ltd. are precision-machined circular washers designed to distribute load and prevent surface damage in bolted assemblies. They conform to the DIN433 standard, which defines dimensions for washers with outer diameters ranging from 6mm to 100mm and thicknesses from 0.8mm to 6mm. These washers are manufactured from carbon steel, stainless steel, or galvanized finishes, with tolerances typically held to ±0.05mm on outer diameter and ±0.03mm on thickness.

Standard DIN433 washers are often confused with DIN125 washers, which have a larger outer diameter for the same inner diameter. DIN433 washers are thinner and more compact, making them suitable for space-constrained applications. Stainless steel variants (A2 or A4 grade) offer corrosion resistance for outdoor or marine use, while galvanized carbon steel provides economical protection against rust. Typical surface finishes include plain, zinc-plated, or hot-dip galvanized, with salt spray resistance tested to 72 to 120 hours depending on coating thickness.

These washers are used in construction, automotive assembly, machinery, and industrial equipment where consistent clamping force and surface protection are required. Buyers often source them in bulk for production lines or maintenance inventories. Packaging is usually in polybags or bulk boxes, with quantities ranging from 100 to 10,000 pieces per pack. Trade terms are typically FOB Tianjin, with lead times of 10 to 20 working days. Buyers should confirm material grade, coating type, and dimensional compliance before placing orders.

Tianjin Yushu T.I.T Co., Ltd. is located in the Xiqing District of Tianjin, near major transportation corridors. The company is registered as a manufacturer of industrial fastening components, including washers, nuts, and bolts. The listing does not mention years in operation, workforce size, certifications, or export history. Response rate and average response time are not recorded, indicating limited buyer engagement on the platform.

There is no public information on production capacity, quality control procedures, or third-party audits. The supplier does not claim ISO certification, material traceability, or test reports. Buyers should treat this as a basic manufacturing entity without verified quality systems. Direct confirmation of material composition, coating thickness, and dimensional compliance is essential before bulk orders.