The Walraven ZK7K4R (Article 6535008) is a genuine RapidRail® washer plate U WM0 sv 9.0/28mm, designed for use with the RapidRail® WM0 system. This high-quality washer plate is manufactured from hot-dip galvanized steel, ensuring exceptional durability and corrosion resistance. It features an integrated retaining ring and is specifically engineered for securely fixing threaded rods or bolts within the RapidRail system. The washer plate has dimensions of 28mm length, 28mm width, and 3mm height, with an inner diameter of 9.0mm and an outer diameter of 28.0mm. Each piece weighs 0.003 kg and is typically supplied in packaging units of 50 pieces.