The Hiab 3815285 is a genuine OEM square washer, designed for robust and secure fastening applications within Hiab machinery. This washer features an M27 bore, with external dimensions of 50x50mm and a thickness of 8mm, ensuring a precise fit and reliable performance. It is crucial for distributing load and preventing loosening of bolted joints in various Hiab crane and loader systems, maintaining the structural integrity and operational safety of the equipment.